Percentage MCQs with Answers and Explanations for Competitive Exams

Question #221

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Salary increased by 20% then decreased by 20%. Net effect:

A. 4% increase

B. 2% decrease

C. No change

D. 4% decrease

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Correct Answer: Option D

Explanation:
1.2 × 0.8 = 0.96, 4% decrease.

This question belongs to: Maths Percentage

Question #222

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Number of boys 20% more than girls, total 88. Number of boys:

A. 48

B. 44

C. 40

D. 52

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Correct Answer: Option A

Explanation:
Girls = x, boys = 1.2x, total 2.2x=88 → x=40, boys=48.

This question belongs to: Maths Percentage

Question #223

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Price of TV increased 30% then decreased 30%. Net change:

A. No change

B. 9% increase

C. 6% decrease

D. 9% decrease

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Correct Answer: Option D

Explanation:
1.3 × 0.7 = 0.91, 9% decrease.

This question belongs to: Maths Percentage

Question #224

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A number divided by 5, quotient increased by 20% then decreased by 20% gives 480. Number:

A. 2200

B. 2400

C. 2000

D. 2500

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Correct Answer: Option D

Explanation:
(N/5)×1.2×0.8=480 → (N/5)×0.96=480 → N/5=500 → N=2500.

This question belongs to: Maths Percentage

Question #225

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Two numbers 25% and 40% less than a third. Second is what % of first?

A. 75%

B. 80%

C. 90%

D. 85%

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Correct Answer: Option B

Explanation:
Third=100, first=75, second=60; (60/75)×100=80%.

This question belongs to: Maths Percentage

Question #226

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Income Rs. 20000, spends 60%. Income rises 25%, savings to increase 50%. % increase in expenditure:

A. 6.25%

B. 8.33%

C. 10%

D. 12.5%

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Correct Answer: Option B

Explanation:
Initial: inc 20000, exp 12000, sav 8000. New inc 25000, sav 12000, exp 13000. Increase 1000 on 12000 = 8.33%.

This question belongs to: Maths Percentage

Question #227

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In an election, 75% cast votes. Winner got 52% of cast votes, won by 600. Total voters:

A. 15000

B. 20000

C. 24000

D. 18000

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Correct Answer: Option B

Explanation:
Cast votes C, margin 4%C = 600 → C=15000. Total T, 0.75T=15000 → T=20000.

This question belongs to: Maths Percentage

Question #228

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Batsman scored 110 runs with 3 fours, 8 sixes. % runs from running:

A. 42.5%

B. 45.45%

C. 40%

D. 50%

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Correct Answer: Option B

Explanation:
Boundary runs = 12+48=60, running=50. % = (50/110)×100 ≈ 45.45%.

This question belongs to: Maths Percentage

Question #229

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A's marks 20% more than B's, B's 25% less than C's. A gets 180, C's marks:

A. 160

B. 200

C. 180

D. 220

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Correct Answer: Option B

Explanation:
A=1.2B, B=0.75C → A=0.9C → C=180/0.9=200.

This question belongs to: Maths Percentage

Question #230

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Price of pen up 12%. By what % reduce consumption so that expenditure rises only 4%?

A. 6.67%

B. 8.33%

C. 7.14%

D. 8%

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Correct Answer: Option C

Explanation:
1.12 × x = 1.04 → x = 1.04/1.12 = 0.92857, reduction = 7.14%.

This question belongs to: Maths Percentage

Question #231

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Population 1,25,000. First year +10%, second year -5%. Population after 2 years:

A. 1,28,125

B. 1,33,750

C. 1,30,625

D. 1,32,500

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Correct Answer: Option C

Explanation:
1,25,000 × 1.1 × 0.95 = 1,30,625.

This question belongs to: Maths Percentage

Question #232

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To pass need 40%. A student gets 40 marks and fails by 40. Max marks:

A. 250

B. 200

C. 220

D. 180

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Correct Answer: Option B

Explanation:
Pass = 80, 40% M = 80 → M = 200.

This question belongs to: Maths Percentage

Question #233

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Library: 20% English, 30% Hindi, remaining 5000 other. Total books:

A. 12000

B. 15000

C. 8000

D. 10000

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Correct Answer: Option D

Explanation:
50% = 5000, total = 10000.

This question belongs to: Maths Percentage

Question #234

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Side of square increased 10%. % increase in area:

A. 22%

B. 25%

C. 21%

D. 20%

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Correct Answer: Option C

Explanation:
Area multiplier = 1.1² = 1.21, increase 21%.

This question belongs to: Maths Percentage

Question #235

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Spends 25% on food, 15% rent, 10% clothing, saves Rs. 3000. Income:

A. 6000

B. 5500

C. 5000

D. 6500

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Correct Answer: Option A

Explanation:
Spends 50%, saves 50% = 3000, income = 6000.

This question belongs to: Maths Percentage

Question #236

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Price up 20%, person buys 2 kg less for Rs. 60. Original price/kg:

A. Rs. 5

B. Rs. 4

C. Rs. 7

D. Rs. 6

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Correct Answer: Option A

Explanation:
Original price x, xy=60. New 1.2x(y-2)=60 → 1.2×60 - 2.4x =60 → x=5.

This question belongs to: Maths Percentage

Question #237

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Employees reduced by 25%. To keep total wage bill same, wage per head must increase by:

A. 25%

B. 30%

C. 33.33%

D. 20%

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Correct Answer: Option C

Explanation:
New employees 0.75, wage per head multiplier = 1/0.75 = 1.3333, increase 33.33%.

This question belongs to: Maths Percentage

Question #238

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65% of a number is 21 less than 80%. Number is:

A. 120

B. 130

C. 140

D. 150

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Correct Answer: Option C

Explanation:
0.8x - 0.65x = 21 → 0.15x = 21 → x = 140.

This question belongs to: Maths Percentage

Question #239

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40% failed in Physics, 30% in Chemistry, 20% in both. % passed in both:

A. 30%

B. 50%

C. 60%

D. 40%

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Correct Answer: Option B

Explanation:
Failed at least one = 40+30-20=50%, passed both = 50%.

This question belongs to: Maths Percentage

Question #240

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Buy cycle for Rs. 1400, sell at 15% loss. Selling price:

A. 1210

B. 1160

C. 1190

D. 1150

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Correct Answer: Option C

Explanation:
1400 × 0.85 = 1190.

This question belongs to: Maths Percentage

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