ML Aggarwal Class-7 Percentage and its Applications ICSE Maths Ch-7

ML Aggarwal Class-7 Percentage and its Applications ICSE Mathematics Solutions  Chapter-7. We provide step by step Solutions of Exercise / lesson-7 Percentage and its Applications ICSE Class-7th ML Aggarwal Mathematics .

Our Solutions contain all type Questions with Exe-7.1 , Exe-7.2, Exe-7.3 , Exe-7.4, Objective Type Questions ( including Mental Maths Multiple Choice Questions Value Based Questions, HOT) and Check Your Progress to develop skill and confidence. Visit official Website CISCE for detail information about ICSE Board Class-7 Mathematics.

ML Aggarwal Class-7 Percentage and its Applications ICSE Mathematics Solutions  Chapter-7


–: Select Topic :–

Exe-7.1 ,

 Exe-7.2,

 Exe-7.3,

 Exe-7.4, 

Objective Type Questions Mental Maths,

Multiple Choice Questions ,(MCQ)

Value Based Questions,

HOTS

Check Your Progress


Exercise – 7.1, ML Aggarwal Class-7 Percentage and its Applications ICSE Mathematics Solutions

Question 1.
Convert the following percents into fractions in simplest form:
(i) 25%
(ii) 150%
(iii) 7.12 %
(iv) 33.13 %

Answer-1

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.1 1

Question 2.
Convert the following fractions into percent’s:
(i) 1/8
(ii) 5/4
(iii) 9/16
(iv) 3/7
(v) 11/15
(vi) 138

Answer-2

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.1 2

Question- 3.
(i) 6 students out of 40 students in a class are absent. What percentage of students are absent ?
(ii) Antony secured 384 marks out of 500 marks. Find the percentage of marks secured by Antony.
(iii) A shop has 500 shirts, out of which 15 are defective. What percentage of shirts are defective?
(iv) Vani has a collection of bangles. She has 20 gold bangles and 10 silver bangles. What is the percentage of each type of bangles?
(v) There are 120 voters and 90 of them voted. What percent did not vote?

Answer-3

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.1 3

Question 4.
Estimate the part of the figure which is shaded and hence find the percentage of the part which is shaded.

.ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.1 4…………

Answer-4

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.1 5

 

Question 5.
Convert the following percentage into ratios in sirup rest form:
(i) 14 %
(ii) 134 %
(iii) 3313 %
(iv) 37.5 %

Answer-5

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.1 6

Question 6.
Express the following ratios as percentages:
(i) 5 : 4
(ii) 1 : 1
(iii) 2 : 3
(iv) 9 : 16

Answer-6

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.1 7

Question -7.
An alloy consists of 7 parts of zinc and 33 parts of copper. Find the percentage of copper in the alloy ?

Answer-7

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.1 8

Question -8.
Chalk contains calcium, carbon and sand in the ratio 12 : 3 : 10. Find the percentage of carbon in the chalk 12%.

Answer-8

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.1 9

Question- 9.
If ₹ 2500 is to be divided among Ravi, Raju and Roy, so that Ravi gets two parts, Raju three parts and Roy five parts. How much money will each get? What will it be in percentages?

Answer-9

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.1 10

Question- 10.
Convert the following percentages to decimals:
(i) 28%
(ii) 3%
(iii) 0. 44%
(iv) 3712 %

Answer-10
ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.1 11

Question -11.
Convert the following decimals to percent’s:
(i) 0.65
(ii) 0.9
(iii) 2.1
(iv) 0.02

Answer-11

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.1 12

Question 12.
(i) If 42% of the students in a class are girls, then what percent of the students in the class are boys?
(ii) We have a basket full of apples, oranges, and mangoes if 50% are apples, 30% are oranges, then what percent are mangoes?

Answer-12

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.1 13


ML Aggarwal Class-7 ICSE Mathematics Solutions Exercise – 7.2 Percentage and its Applications

Question 1.
Find:
(i) 15% of 250
(ii) 25% of 120 litres
(iii) 1% of 1 hour
(iv) 75% of 1 kg
(v) 120% of ₹ 250
(vi) 0.6% of 2 km

Answer-1

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.2 1
ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.2 2

Question -2.
8% of children of a class of 25 like getting wet in the rain. How many children like getting wet in the rain?

Answer-2

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.2 3

Question -3.
Vasundhara ate 3 ice cream cups out of 20 kept in the fridge. What per cent did she eat?

Answer-3

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.2 4

Question -4.
Express:
(i) 20 as a percentage of 50
(ii) 60 litres as a percentage of 40 litres
(iii) 90 cm as a percentage of 4.5 m
(iv) 350 g as a percentage of 5.6 kg

Answer-4

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.2 5

Question 5.
What per cent is:
(i) 12 of 80
(ii) 25 paise of 4 rupees
(iii) 300 g of 2 kg

Answer-5

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.2 6

Question- 6.
A school team won 6 games this year against 4 games won last year. What is the per cent increase?

Answer-6

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.2 7

Question -7.
The price of a shirt decreased from ₹ 80 to ₹ 60, find the percentage of decrease in the price of the shirt.

Answer-7

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.2 8

Question -8.
My mother says, in her childhood petrol was ₹ 1 per litre. It is ₹ 65 per litre today. By what percentage has the prices of petrol gone up?

Answer-8

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.2 9

Question- 9.
Rate of basmati rice last year was ₹ 40 a kg. This year they are costly by 20%. What is the price this year?
Solution:
ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.2 10

Question- 10.
300 students took an exam. 28% failed. Calculate the number of students who passed the exam.

Answer-10

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.2 11

Question -11.
Out of 15000 voters in a constituency, 60% voted. Find the number of voters who did not vote.

Answer-11

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.2 12

Question -12.
20% of the length of a flagpole is painted green, 45% is painted yellow and the remaining red. If the length of the pole is 18 m, what length of it is painted red?

Answer-12

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.2 13

Question -13.
Chalk contains 10% calcium, 3% carbon, 12% oxygen and the remaining sand. Find the amount of carbon and calcium (in grams) in 212 kg of chalk. Also, find the amount of sand (in kg).
Answer-13

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.2 14

Question -14.
Find the whole quantity if:
(i) 25% of it is 9
(ii) 75% of it is 15
(iii) 12% of it is ₹ 1080
(iv) 8% of it is 40 litres

Answer-14

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.2 15

Question -15.
Mohini saves ₹ 400 from her salary. If this is 10% of her salary, then what is her salary?

Answer-15

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.2 16

Question- 16.
16% of the apples in a basket go bad. If there are 42 good apples in the basket, find the total number of apples in the basket.

Answer-16

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.2 17

Question -17.
In an examination, a student has to secure 45% marks to pass the exam. If Varun got 251 marks and failed by 19 marks, what are the maximum marks?

Answer-17

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.2 18

Question -18.
On a rainy day, 94% of the students were students absent on that day was 174, find the total strength of the school.

Answer-18

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.2 19

Question- 19.
40% of the population of a town are men and 39% are women. If the number of children is 12600, find the number of men.

Answer-19

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.2 20
ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.2 21

Question -20.
If the price of a watch is increased by 15%, the increase in the price is ₹ 90. What was the price of watching earlier?

Answer-20

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.2 22

Question- 21.
(i) Find the number which when increased by 30% becomes 39.
(ii) Find the number which when decreased by 8% becomes 506.

Answer-21

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.2 23
ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.2 24

Question -22.
The price of a shirt is reduced by 7% to ₹ 465. What is its original price?

Answer-22

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.2 25


Exercise – 7.3 Percentage and its Applications ML Aggarwal Class-7  ICSE Mathematics Solutions

Questions -1.
Rohan bought a calculator for ₹ 760 and sold it for ₹ 874. Find his profit and profit percentage.

Answer-1

C.P. of a calculator  and S.P. 


and 

Question -2.
Kirti bought a saree for ₹ 2500 and sold it for ₹ 2300. Find her loss and loss percent.

Answer-2

C.P. of a saree 
and S.P. 
Loss = C.P. – S.P. 

Question- 3.
Tell what is profit or loss in the following transactions. Also find profit percent or loss percent in each case:
(i) Gardening shears bought for ₹ 250 and sold for ₹ 325.
(ii) A shirt bought for ₹ 250 and sold at ₹ 150.

Answer-3

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.3 3

Question- 4.
Rajinder bought one almirah for ₹ 4800 and the other for ₹ 3640. He sold the first almirah at a gain of 1313 % and the other at a loss of 15%. How much did he gain or lose in the whole deal?

Answer-4

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.3 4
ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.3 5

Question- 5.
In a furniture shop, 24 tables were bought at the rate of ₹ 450 per table. The shopkeeper sold 16 of them at the rate of ₹ 600 per table and the remaining at the rate of ₹ 400 per table. Find his gain or loss percent.

Answer-5

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.3 6

 

Question -6.
By selling a fan for ₹ 810, a dealer makes a profit of ₹ 60. What is the cost price of the fan? What is his profit percent?

Answer-6

selling price = 810/-
profit = 60/-

cost price = Selling Price – Profit
cost price = 750/-
profit percentage=  60 x 100 / 750

= 8 %

Question- 7.
By selling a steel almirah for ₹ 3906, a manufacturer suffers a loss of ₹ 294. Find the cost price of the almirah and his loss percentage.

Answer-7

S.P. of a steel almirah 



Answer-8

Given: CP = Rs. 120 and Loss percent = 10.

Loss of 10% means if CP is Rs. 100, Loss is Rs. 10

Therefore,

SP would be Rs.(100 – 10) = Rs. 90

When CP is Rs. 100, SP is Rs. 90.

Therefore, if CP were Rs. 120 then
SP = 90×120 / 100

= Rs. 108.

Answer-9

Profit = 20% of 10000

=20 ×10000 / 100

= Rs 2000

Selling price = Cost price + Profit

= 10000 + 2000

= Rs 12,000

Answer-10

S.P. of an article 

 Cost price 

Answer-11

S.P. of an article

Loss 

 Cost price 

=Rs.320×100​ / 80 

Answer-12

S.P. of a chair



Answer-13

S.P. of damaged garments



Answer-14

S.P. of a table 
If S.P. 
Then gain 

Question 15.
By selling an article for ₹ 4550, Tony incurs a loss of 9%. What percent would he gain or lose by selling it for ₹ 4825?

Answer-15

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.3 16


 

Percentage and its Applications Exercise – 7.4 ML Aggarwal Class-7  ICSE Mathematics Solutions

Question 1

Question 1.
Find the simple interest on:
(i) ₹ 350 for 2 years at 11% per annum
(ii) ₹ 20000 for 4.12 years at 812 % per annum
(iii) ₹ 648 for 8 months at 1623 % per annum. Also, find the amount in each case.

Answer-1

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.4 1
ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.4 2

Question 2.
Find the time when:
(i) simple interest on ₹ 2500 at 4% per annum is ₹ 200
(ii) simple interest on ₹ 12000 at 612 % per annum is ₹ 2730

Answer-2

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.4 3

Question- 3.
Find the rate of interest when:
(i) simple interest on ₹ 1560 in 3 years is ₹ 585
(ii) simple interest on ₹ 1625 in 212 years is ₹ 325.

Answer-3

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.4 4

Question- 4.
Find the principal when:
(i) simple interest at 16% per annum for 212 years is ₹ 3840
(ii) simple interest at 712 % per annum for 2 years 4 months is ₹ 2730.

Answer-4

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.4 5

Question- 5.
Find the rate of interest when:
(i) ₹ 1200 amounts to ₹ 1320 in 2 years
(ii) ₹ 300 amounts to ₹ 400 in 2 years.

Answer-5

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.4 6

Question- 6.
Find the time when:
(i) ₹ 1250 amounts to ₹ 1950 at 16% per annum
(ii) ₹ 6540 amounts to ₹ 8447.50 at 1212 per annum.

Answer-6

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.4 7

Question -7.
₹ 14000 is invested at 4% per annum simple interest. How long will it take for the amount to reach ₹ 16240?

Answer-7

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.4 8

Question- 8.
An amount of money invested trebled in 6 years. Find the rate of interest earned.

Answer-8

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.4 9

Question -9.
Find the principal when:
(i) final amount is ₹ 4500 at 20% per annum for 5 years
(ii) final amount is ₹ 2420 at 4% per annum for 212 years.

Answer-9

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Ex 7.4 10


Objective Type Questions

Mental Maths, Chapter-7 ML Aggarwal Class-7 Percentage and its Applications

Question 1.
Fill in the blanks:
(i) 6% of ₹ 50 = ……….
(ii) If 25% of a number is 12, then the number is ……….
(iii) The mixed fraction 1.34 converted to percentage form is
(iv) If a number increases from 20 to 28, then the increasing percentage is ………
(v) If cost price is ₹ 400 and loss is 15%, then the selling price is ……..
(vi) The profit or loss percentage is always calculated on ……….
(vii) The simple interest on a sum of ₹ 5600 at 8% p.a. for one year is ……….
(viii) 135% converted to decimal is ………
(ix) ……… is 50% more than 60.
(x) 25 mL is ………… percent of 5 litres.

Answer-1
ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Objective Type Questions 1
ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Objective Type Questions 2

Question- 2

State whether the following statements are true (T) or false (F):
(i) 20% more than 30 is 36.
(ii) The ratio 2 : 5 converted to percentage is 60%.
(iii) 614 % expressed as a fraction is 1116.
(iv) 80% of 450 m is equal to 360 m.
(v) If a number decreases from 20 to 15, then the decrease is 25%.
(vi) If Feroz obtains 336 marks out of600 marks, then the percentage of marks obtained by him is 33.6.
(vii) 0.018 is equivalent to 8%.
(viii) 250 cm is 4% of 1 km.
(ix) If S.P. of an article is ₹ 540 and loss is ₹ 40, then its C.P. is ₹ 500.
(x) By selling a book for ₹ 50, a shopkeeper suffers a loss of 10%. The cost price of the books is ₹ 60.

Answer-2

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Objective Type Questions 3
ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Objective Type Questions 4
ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Objective Type Questions 5

 


Multiple Choice Question (MCQ)

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications

Choose the correct answer from the given four options (3 to 16)

Question 3

The ratio 2 : 3 expressed as percent is
(a) 40%
(b) 60%
(c) 6623 %
(d) 3313 %

Answer-3
ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Objective Type Questions 6

Question -4.
The ratio of Fatima’s income to her saving is 4 : 1. The percentage of money saved by her is
(a) 20%
(b) 25%
(c) 40%
(d) 80%

Answer-4

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Objective Type Questions 7

Question 5.
225% is equal to
(a) 2 : 3
(b) 3 : 2
(c) 4 : 9
(d) 9 : 4

Answer-5

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Objective Type Questions 8

Question 6.
If 30% of x is 72, then x is equal to
(a) 120
(b) 240
(c) 360
(d) 480

Answer-6

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Objective Type Questions 9

Question -7.
If x% of 80 = 12, then x is equal to
(a) 15
(b) 20
(c) 25
(d) 30

Answer-7

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Objective Type Questions 10

Question -8.
0.025 when expressed as a percent is
(a) 250%
(b) 25%
(c) 4%
(d) 2.5%

Answer-8

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Objective Type Questions 11

Question- 9.
In class, 45% of students are girls. If there are 22 boys in the class, then the total number of students in the class is
(a) 30
(b) 36
(c) 40
(d) 44

Answer- 9

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Objective Type Questions 12

Question -10.
What percent of 1/7 is 2/35 ?
(a) 20%
(b) 25%
(c) 30%
(d) 40%

Answer-10

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Objective Type Questions 13

Question- 11.
If a man buys an article for ₹ 80 and sells it for ₹ 100, then gain percentage is
(a) 20%
(b) 25%
(c) 40%
(d) 125%

Answer-11

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Objective Type Questions 14

Question -12.
If a man buys an article for ₹ 120 and sells it for ₹ 100, then his loss percentage is
(a) 10%
(b) 20%
(c) 25%
(d) 16 23 %

Answer-12

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Objective Type Questions 15

Question 13.
The salary of a man is ₹ 24000 per month. If he gets an increase of 25% in the salary, then the new salary per month is
(a) ₹ 2500
(b) ₹ 28000
(c) ₹ 30000
(d) ₹ 36000

Answer-13

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Objective Type Questions 16

Question 14.
On selling an article for ₹ 100, Renu gains ₹ 20. Her gain percentage is
(a) 25%
(b) 20%
(c) 15%
(d) 40%

answer-14

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Objective Type Questions 17

Question 15.
The simple interest on ₹ 6000 at 8% p.a. for one year is
(a) ₹ 600
(b) ₹ 480
(c) ₹ 400
(d) ₹ 240

Answer-15

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Objective Type Questions 18

Question 16.
If Rohit borrows ₹ 4800 at 5% p.a. simple interest, then the amount he has to return at the end of 2 years is
(a) ₹ 480
(b) ₹ 5040
(c) ₹ 5280
(d) ₹ 5600

Answer-16

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Objective Type Questions 19


Value Based Question

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications

Question 1.
One bad apple is accidentally mixed with some good apples in a basket. As a result of which 25% of the total apples go bad. Now the number of good apples in the basket is 30. Find the number of good apples kept in the basket previously. What will happen if one bad person is mixed with some good ones?

Answer-1

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Objective Type Questions 20

Question 2.
There is a group of 50 people who are patriotic out of which 40% believe in non-violence. Find the number of persons who believe in non-violence. Explain the importance of non-violence in patriotism.

Answer-2

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Objective Type Questions 21


Higher Order Thinking  Skills ( HOTS )

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications

Question 1.

A person preparing medicine wants to convert 15% alcohol solution into 32% alcohol solution. Find how much pure alcohol should he mix with 400 mL of 15% alcohol solution to obtain it.

Answer-2

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Objective Type Questions 22

Question 2.
A manufacturer sells an item to an agency at a profit of 25%. The agency sells the item to a shopkeeper at 10% profit and shopkeeper sells the item at a profit of 20%. If the selling price of the item is ₹ 594, find the manufacturing price.

Answer-2

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Objective Type Questions 23


Check Your Progress ML Aggarwal Class-7 Percentage and Its Applications

Question 1.
Convert the following percentages into fractions in the simplest form:
(i) 12.12 %
(ii) 66.23 %
(iii) 8.13 %

Answer-1

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Check Your Progress 1

Question 2.
Express each of the following fractions as a percentage:
(i) .58
(ii) .1340
(iii) 76

answer-2

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Check Your Progress 2

Question 3.
Express each of the following percentages as a decimal:
(i) 122%
(ii) 2.2%
(iii) 318 %

Answer-3

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Check Your Progress 3

Question 4.
Express 0.0345 as a percentage.

Answer-4

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Check Your Progress 4

Question 5.
Convert each part of the ratio 5 : 6 : 9 to a percentage.

Answer-5

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Check Your Progress 5

Question 6.
(i) What percent of a day is half an hour?
(ii) What percent is 34 metres of 412 metres?

Answer-6

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Check Your Progress 6
Question 7.
The population of a town decreased from 25000 to 24500. Find the percentage decrease.

Answer-7

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Check Your Progress 7
Question 8.
Arun bought a car for ₹ 350000. The next year, the price went upto ₹ 370000. What was the precentage increase in the price?

Answer-8

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Check Your Progress 8

Question 9.
The population of a village has decreased by 6%. If the original population was 3650, find the population after decrease.

Answer-9

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Check Your Progress 9

Question 10.
43% of the students in a school are girls. If the number of boys is 1482, find:
(i) the total strength of the school
(ii) number of girls in the school.

Answer-10

al Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Check Your Progress 10

Question- 11.
Rohan bought a calculator for ₹ 760 and sold it for ₹ 874. Find his profit and profit percentage.

Answer-11

al Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Check Your Progress 11

Question- 12.
On selling an article for ₹ 1027, Meena suffered a loss of ₹ 273. Find her loss percentage.

Answer-12

al Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Check Your Progress 12

Question 13.
By selling a fan for ₹ 710, a trader suffers a loss of ₹ 40. Find the cost price of the fan. At what price this fan should be sold in order to gain 10%?

Answer-13

al Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Check Your Progress 13

Question 14.
A shopkeeper sells an article at ₹ 300, thus earning a profit of 20%. Find the cost price of the article.

Question-14

al Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Check Your Progress 14

Question 15.
A shopkeeper sells an article at ₹ 320, thus suffering a loss of 20%. Find the cost price of the article.

Answer-15

al Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Check Your Progress 15

Question 16.
If ₹ 6000 is borrowed at 6.5% per annum simple interest, find the interest and the amount to be paid at the end of 3 years.

Answer-16

al Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Check Your Progress 16

Question 17.
How long will it take for ₹ 1860 invested at the rate of 9.5% per annum simple interest to amount to ₹ 2449?

Answer-17

al Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Check Your Progress 17

Question 18.
At what rate will ₹ 7200 fetch a simple interest of ₹ 3024 in 4 years?

Answer-18

al Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Check Your Progress 18

Question 19.
What sum of money will yield a simple interest of ₹ 1155in 3 years 6 months at 11% p.a.?

Answer-19

al Class 7 Solutions for ICSE Maths Chapter 7 Percentage and Its Applications Check Your Progress 19

– : End of ML Aggarwal Class-7 Percentage and its Applications Solutions  :–

Return to –  ML Aggarwal Maths Solutions for ICSE Class -7

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