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
— : End of Percentage Class 7 RS Aggarwal Exe-9D MCQs Goyal Brothers ICSE Foundation Maths Solutions :–
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