Price increased 15% then 10%. Single equivalent increase: MCQ with Answer and Explanation

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

A. 24.5%

B. 26.5%

C. 25%

D. 27%

Answer: Option B

Solution (By JKSSB Mock Tests)

1.15 × 1.1 = 1.265, increase 26.5%.

This question belongs to: Maths Percentage

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Question #1

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A student multiplied a number by 4/5 instead of 5/4. What is the percentage error?

A. 30%

B. 36%

C. 45%

D. 25%

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Correct Answer: Option B

Explanation:
Error = (5/4 - 4/5)x = (9/20)x. % Error = ((9/20) / (5/4)) * 100 = (9/25) * 100 = 36%.

This question belongs to: Maths Percentage

Question #2

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Gave 20% to wife, 25% of remainder to son, rest to daughter. Daughter got Rs. 6000, total:

A. 10000

B. 15000

C. 12000

D. 8000

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Correct Answer: Option A

Explanation:
Wife 20%, left 80%, son 25% of 80%=20%, daughter 60%=6000 → total=10000.

This question belongs to: Maths Percentage

Question #3

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Candidate got 40% of valid votes and lost by 3000. 25% votes invalid. Total voters:

A. 22000

B. 20000

C. 18000

D. 16000

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Correct Answer: Option B

Explanation:
Valid votes V, winner 60%V, loser 40%V, margin 20%V=3000 → V=15000. Total T, 0.75T=15000 → T=20000.

This question belongs to: Maths Percentage

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