Percentage MCQs with Answers and Explanations for Competitive Exams

Question #421

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A's marks 25% more than B's, B's 20% less than C's. A gets 200, C's marks:

A. 180

B. 210

C. 200

D. 190

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Correct Answer: Option C

Explanation:
A=1.25B, B=0.8C → A=1.25×0.8C = C, so C=200.

This question belongs to: Maths Percentage

Question #422

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Price of pen up 15%. By what % reduce consumption so that expenditure rises only 5%?

A. 8%

B. 9.09%

C. 8.7%

D. 10%

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Correct Answer: Option C

Explanation:
1.15 × x = 1.05 → x = 1.05/1.15 ≈ 0.91304, reduction = 8.7%.

This question belongs to: Maths Percentage

Question #423

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Population 2,00,000. First year +8%, second year -5%. Population after 2 years:

A. 2,05,200

B. 2,06,400

C. 2,08,800

D. 2,07,600

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Correct Answer: Option A

Explanation:
2,00,000 × 1.08 × 0.95 = 2,05,200.

This question belongs to: Maths Percentage

Question #424

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To pass need 45%. A student gets 54 marks and fails by 36. Max marks:

A. 180

B. 220

C. 200

D. 250

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Correct Answer: Option C

Explanation:
Pass = 90, 45% M = 90 → M = 200.

This question belongs to: Maths Percentage

Question #425

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Library: 25% English, 35% Hindi, remaining 6000 other. Total books:

A. 15000

B. 16000

C. 14000

D. 12000

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Correct Answer: Option A

Explanation:
40% = 6000, total = 15000.

This question belongs to: Maths Percentage

Question #426

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Side of square increased 15%. % increase in area:

A. 32.25%

B. 40%

C. 35%

D. 30%

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Correct Answer: Option A

Explanation:
Area multiplier = 1.15² = 1.3225, increase 32.25%.

This question belongs to: Maths Percentage

Question #427

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Spends 30% on food, 20% rent, 15% clothing, saves Rs. 5250. Income:

A. 16000

B. 14000

C. 15000

D. 12000

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Correct Answer: Option C

Explanation:
Spends 65%, saves 35% = 5250, income = 5250/0.35 = 15000.

This question belongs to: Maths Percentage

Question #428

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Price of sugar increased 25%. A person buys 4 kg less for Rs. 100. Original price per kg was:

A. Rs. 5

B. Rs. 8

C. Rs. 4

D. Rs. 6

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Correct Answer: Option A

Explanation:
Original price x, xy=100. New 1.25x(y-4)=100 → 1.25×100 - 5x =100 → 125-5x=100 → x=5.

This question belongs to: Maths Percentage

Question #429

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Employees reduced by 20%. To keep total wage bill same, wage per head must increase by:

A. 22.5%

B. 30%

C. 20%

D. 25%

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Correct Answer: Option D

Explanation:
New employees 0.8, wage per head multiplier = 1/0.8 = 1.25, increase 25%.

This question belongs to: Maths Percentage

Question #430

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70% of a number is 28 less than 90%. Number is:

A. 120

B. 140

C. 150

D. 130

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Correct Answer: Option B

Explanation:
0.9x - 0.7x = 28 → 0.2x = 28 → x = 140.

This question belongs to: Maths Percentage

Question #431

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35% failed in Maths, 25% in English, 15% in both. % passed in both:

A. 50%

B. 45%

C. 55%

D. 60%

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Correct Answer: Option C

Explanation:
Failed at least one = 35+25-15=45%, passed both = 55%.

This question belongs to: Maths Percentage

Question #432

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Buy article for Rs. 1800, sell at 12% loss. Selling price:

A. 1544

B. 1600

C. 1566

D. 1584

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Correct Answer: Option D

Explanation:
1800 × 0.88 = 1584.

This question belongs to: Maths Percentage

Question #433

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Price reduced 30% then increased 40%. Net change:

A. 2% decrease

B. 10% increase

C. 2% increase

D. No change

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Correct Answer: Option A

Explanation:
0.7 × 1.4 = 0.98, 2% decrease.

This question belongs to: Maths Percentage

Question #434

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Number increased 40% then decreased 30%. Net change:

A. No change

B. 2% increase

C. 2% decrease

D. 10% decrease

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Correct Answer: Option C

Explanation:
1.4 × 0.7 = 0.98, 2% decrease.

This question belongs to: Maths Percentage

Question #435

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Ratio of two numbers 5:7. First increased 10%, second 20%. New ratio:

A. 13:17

B. 5:7

C. 55:84

D. 11:14

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Correct Answer: Option C

Explanation:
First = 5.5, second = 8.4, ratio = 55:84.

This question belongs to: Maths Percentage

Question #436

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Office 70% men. 80% of men and 60% of women have car. % of workers with car:

A. 72%

B. 70%

C. 68%

D. 74%

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Correct Answer: Option D

Explanation:
Men with car = 56% of total, women = 18%, total 74%.

This question belongs to: Maths Percentage

Question #437

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Marked 30% above CP, discount 20%. Profit %:

A. 5%

B. 6%

C. 8%

D. 4%

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Correct Answer: Option D

Explanation:
CP=100, MP=130, SP=104, profit 4%.

This question belongs to: Maths Percentage

Question #438

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Price increased 15% then 10%. Single equivalent increase:

A. 26.5%

B. 24.5%

C. 27%

D. 25%

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Correct Answer: Option A

Explanation:
1.15 × 1.1 = 1.265, increase 26.5%.

This question belongs to: Maths Percentage

Question #439

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25% of A = 40% of B = 1/5 of C. Find A:B:C.

A. 5:8:10

B. 8:10:5

C. 8:5:10

D. 10:8:5

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Correct Answer: Option C

Explanation:
Let 0.25A = 0.4B = 0.2C = k. Then A=4k, B=2.5k, C=5k. Multiply by 2: A:B:C = 8:5:10.

This question belongs to: Maths Percentage

Question #440

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Length, breadth, height increased 10%, 20%, 30%. % increase in volume:

A. 72.8%

B. 60%

C. 66%

D. 71.6%

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Correct Answer: Option D

Explanation:
1.1×1.2×1.3 = 1.716, increase 71.6%.

This question belongs to: Maths Percentage

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