Percentage MCQs

Maths

Percentage MCQs

Practice Percentage MCQs with answers and detailed explanations. Learn percentage calculations, increase and decrease percentages, profit and loss percentages, discounts, percentage change and exam-oriented quantitative aptitude questions designed for SSC, Railway, Banking, UPSC, JKSSB, Police, Teaching and other competitive exams.

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Practice Questions

Page 7 of 34
Question #121
What percent of 80 is 20?
A. 15%
B. 20%
C. 30%
D. 25%
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Correct Answer: Option D

Explanation:
(20/80) × 100 = 25%.
This question belongs to: Maths Percentage
Question #122
If the price of a book is increased by 20%, its new price is Rs. 180. Original price was:
A. 160
B. 150
C. 140
D. 170
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Correct Answer: Option B

Explanation:
Let original price be P. 1.2P = 180 → P = 150.
This question belongs to: Maths Percentage
Question #123
A number decreased by 10% becomes 90. The number is:
A. 100
B. 95
C. 110
D. 105
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Correct Answer: Option A

Explanation:
0.9x = 90 → x = 100.
This question belongs to: Maths Percentage
Question #124
In an election, candidate A got 55% votes and B got the rest. If total votes were 2000, how many votes did B get?
A. 900
B. 800
C. 1100
D. 1000
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Correct Answer: Option A

Explanation:
B got (100% - 55%) = 45% of 2000 = 900 votes.
This question belongs to: Maths Percentage
Question #125
The population of a town increases by 5% from 20,000. New population is:
A. 22,000
B. 21,000
C. 20,500
D. 21,500
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Correct Answer: Option B

Explanation:
20,000 × 1.05 = 21,000.
This question belongs to: Maths Percentage
Question #126
A machine depreciates 10% per year. Its value after 1 year if purchased for Rs. 50,000 is:
A. 45,000
B. 47,000
C. 44,000
D. 46,000
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Correct Answer: Option A

Explanation:
Value = 50,000 × 0.9 = 45,000.
This question belongs to: Maths Percentage
Question #127
12.5% expressed as a fraction is:
A. 1/10
B. 1/6
C. 1/8
D. 1/12
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Correct Answer: Option C

Explanation:
12.5/100 = 1/8.
This question belongs to: Maths Percentage
Question #128
What is 30% of 30% of 200?
A. 20
B. 30
C. 18
D. 24
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Correct Answer: Option C

Explanation:
0.3 × 0.3 × 200 = 18.
This question belongs to: Maths Percentage
Question #129
A number increased by 25% then decreased by 20% results in net change of:
A. 5% increase
B. 5% decrease
C. 4% decrease
D. 0%
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Correct Answer: Option D

Explanation:
Net multiplier = 1.25 × 0.8 = 1.0, so 0% change.
This question belongs to: Maths Percentage
Question #130
If x% of 200 = 40, then x is:
A. 30
B. 15
C. 25
D. 20
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Correct Answer: Option D

Explanation:
200 × x/100 = 40 → 2x = 40 → x = 20.
This question belongs to: Maths Percentage
Question #131
80 is what percent of 160?
A. 40%
B. 50%
C. 55%
D. 45%
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Correct Answer: Option B

Explanation:
(80/160) × 100 = 50%.
This question belongs to: Maths Percentage
Question #132
To pass an exam, 40% is required. A student got 150 marks and failed by 30 marks. Maximum marks are:
A. 450
B. 550
C. 400
D. 500
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Correct Answer: Option A

Explanation:
Pass marks = 150 + 30 = 180. 40% of Max = 180 → Max = 180/0.4 = 450.
This question belongs to: Maths Percentage
Question #133
In a class of 50 students, 60% are boys. Number of girls is:
A. 25
B. 30
C. 35
D. 20
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Correct Answer: Option D

Explanation:
Girls = 40% of 50 = 20.
This question belongs to: Maths Percentage
Question #134
5% of a number is 10. What is 20% of the same number?
A. 60
B. 40
C. 50
D. 30
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Correct Answer: Option B

Explanation:
Number = 10/0.05 = 200. 20% of 200 = 40.
This question belongs to: Maths Percentage
Question #135
A man's salary increased from Rs. 8000 to Rs. 10000. Percentage increase is:
A. 20%
B. 30%
C. 15%
D. 25%
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Correct Answer: Option D

Explanation:
Increase = 2000, % = (2000/8000)×100 = 25%.
This question belongs to: Maths Percentage
Question #136
30% of 150 + 20% of 50 = ?
A. 60
B. 70
C. 55
D. 65
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Correct Answer: Option C

Explanation:
30% of 150 = 45, 20% of 50 = 10, sum = 55.
This question belongs to: Maths Percentage
Question #137
What percent of 200 is 40?
A. 25%
B. 20%
C. 15%
D. 10%
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Correct Answer: Option B

Explanation:
(40/200)×100 = 20%.
This question belongs to: Maths Percentage
Question #138
Increase 500 by 10%. Result is:
A. 550
B. 600
C. 510
D. 505
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Correct Answer: Option A

Explanation:
500 × 1.1 = 550.
This question belongs to: Maths Percentage
Question #139
Decrease 800 by 25%. Result is:
A. 750
B. 650
C. 600
D. 700
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Correct Answer: Option C

Explanation:
800 × 0.75 = 600.
This question belongs to: Maths Percentage
Question #140
4/5 as a percent is:
A. 60%
B. 90%
C. 70%
D. 80%
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Correct Answer: Option D

Explanation:
(4/5)×100 = 80%.
This question belongs to: Maths Percentage

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