# Percentage Class 7 RS Aggarwal Exe-9D MCQs Goyal Brothers ICSE Maths Solutions

Percentage Class 7 RS Aggarwal Exe-9D MCQs Goyal Brothers ICSE Maths Solutions. We provide step by step Solutions of lesson / Chapter-9 Percentage for ICSE Class-7 Foundation RS Aggarwal Mathematics of Goyal Brothers Prakashan to develop skill and confidence. Visit official Website CISCE for detail information about ICSE Board Class-7 Mathematics.

## Percentage Class 7 RS Aggarwal Exe-9D MCQs Goyal Brothers ICSE Maths Solutions

 Board ICSE Publications Goyal brothers Prakashan Subject Maths Class 7th Chapter-9 Percentage Writer RS Aggrawal Book Name Foundation Topics Solution of Exe-9D MCQs Academic Session 2024 – 2025

### MULTIPLE CHOICE QUESTIONS

Percentage Class 7 RS Aggarwal Exe-9D MCQs Goyal Brothers ICSE Maths Solutions.

Choose the correct option in each of the following:

##### Question-1:  2/5 expressed as a percentage is

(a) 20%       (b) 40%       (c) 50%        (d) 10%

Answer- 2/5 = [(2/5) * 100]% = 40%

so, option (b) is correct.

##### Question-2: The ratio 1: 4 expressed as a percentage is

(a) 10%   (b) 20%      (c) 25%       (d) 40%

Answer- 1:4 = 1/4 = [(1/4) * 100]% = 25%

so, option (c) is correct.

##### Question-3:   2(1/7)% expressed as a fraction is

(a) 3/49              (b) 6/137            (c) 3/140                (d) 5/147

Answer-  2(1/7% = [15/(7 * 100)]% = 3/140

so, option (c) is correct.

##### Question-4: If of x% of 80 = 16, then the value of x is

(a) 12   (b) 16    (c) 20   (d) 24

Answer- x% of 80 = 16

(x/100) * 80 = 16

x = (16 * 100) / 80

x = 20 , so, option (c) is correcct.

##### Question-5: What per cent of a day is 27 minutes?

(a) 1(7/8)                (b) 2(3/8)               (c) 3(3/4)               (d) 2(1/4)

Answer-  1 day = 24 × 60 minutes

The percent of 27 minutes in a day = [27 / (24 * 60)] * 100 = 15 / 8 =  1(7/8)

so, option (a) is correct.

##### Question-6:  A number decreased by 15% gives 68. The number is

(a) 85     (b) 80  (c) 75   (d) 70

Answer- let the number be x

(100% – 15 %) *  x  = 68

85% *  x = 68

(85/100) * x =68

85x = 68 * 100

85x = 6800

x = 6800/ 85,  x = 80

so, option (b) is correct.

##### Question-7: A number increased by 25% gives 45. The number is

a) 30     (b) 32   (c) 35  (d) 36

Answer-  a + 25% of a = 45

a + a/4 = 45

5a/4 = 45

a= 36, so, option (d) is correct.

##### Question-8: After an increase of 15%, the salary of a person becomes ₹51750. His original salary was

(a) 45000    (b) 48000    (c) 50000   (d) 59500

Answer- x+15% of x = 51750

100x+15x / 100 = 51750

115x= 51750×100

x = 5175000 /115

x = 45000, so, option (a) is correct.

##### Question-9:  In an examination, 95% of the total examinees passed. If the number of failures was 36, how many examinees were there?

(a) 540   (b) 680     (c) 720   (d) 810

Answer- Let total number of examinees be x.

failed students = 100 – 95 = 5% , which is 36

Therefore, 5% of x = 36

5x/100 = 36

5x=3600

x=3600/5,  x=720 students.

so, option (c) is correct.

##### Question-10: The value of a machine depreciates 15% annually. If its present value is ₹51000, what was its value one year earlier?

(a) 43350   (b) 48650   (c) 56000       (d) 60000

Answer- Let the value be x

x – (15% * x) = 51000

= x – (15/100 * x) = 51000

= x – 3x/20 = 51000

(20x – 3x) /20 = 51000

17x/20 = 51000

x = 51000 * 20/17

x = 3000 × 20

Hence = Rs. 60000

so, option (d) is correct.

#### MENTAL MATHS

Percentage Class 7 RS Aggarwal Exe-9D MCQs Goyal Brothers ICSE Maths Solutions

##### Question-1. Fill in the blanks:

(i) Add 15% of 60 to 40. ___

Ans-(i) 15% of 60 = (15/100) * 60 = 9
req. no. = 40 + 9 = 49

(ii) A student scored 32 marks out of 40 in Maths. Express this as a per cent. ____

Ans-(ii) (32/40) * 100 = 80%

(iii) If 40% of the length of a cloth is 120 cm, what is the whole length of the cloth? ______

Ans-(iii) let the length be x

now, 40% of x = 120

(40/100 ) * x = 120

x = (120 * 100 ) / 40

x = 300 cm.

(iv) What per cent of 2.8 kg is 980 g? ____

Ans-(iv) let the number be x

x % of 2800 g = 980 g

(x/100) * 2800 = 980

x = (980 * 100) / 2800

x = 35%.

(v) Express 0.74 as a per cent. _____

Ans-(v) 0.74 = (74/100) * 100 = 74%.

Question-2. Write true (T) or false (F):

(i) 1/4 can be can expressed as 0.25%. ____

Ans-(i) False   Reason: 0.25% = 25/(100 * 100) = 25/10000 = 1/400.

(ii) 1:5 expressed as a per cent is 20%. ____

Ans-(ii) True, Reason: 20% = 20/100 = 1/5 = 1:5

(iii) 100% of 1 is 100 and 1% of 100 is 100. _____

Ans-(iii) False, Reason:   1% of 100 = (1/100) * 100 = 1.

(iv) 16% of ₹25 is ₹10. ____

Ans-(iv) False ,  Reason: (16/100) * 25 = 16/4 = 4.

(v) 18 marks out of 30 marks is more than 50 marks out of 80 marks. _____

Ans-(v) False, Reason:  18/30 = 0.6  whereas, 50/80 = 0.625

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