Price increased 10% then 20%. Single equivalent increase: MCQ with Answer and Explanation

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Price increased 10% then 20%. Single equivalent increase:

A. 34%

B. 30%

C. 28%

D. 32%

Answer: Option D

Solution (By JKSSB Mock Tests)

1.1 × 1.2 = 1.32, increase 32%.

This question belongs to: Maths Percentage

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Question #1

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A machine depreciates 12% per year. Its value after 1 year if purchased for Rs. 60,000 is:

A. 52,500

B. 52,000

C. 53,000

D. 52,800

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Correct Answer: Option D

Explanation:
60,000 × 0.88 = 52,800.

This question belongs to: Maths Percentage

Question #2

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A student scored 45% marks in the first paper and 55% in the second paper. If the maximum marks in each paper are equal and he scored 250 marks in total, what are the maximum marks of each paper?

A. 275

B. 225

C. 250

D. 200

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Correct Answer: Option C

Explanation:
Let max per paper = M. 0.45M + 0.55M = 1.0M = 250 → M = 250.

This question belongs to: Maths Percentage

Question #3

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What percent is 400 g of 4 kg?

A. 8%

B. 10%

C. 12%

D. 12.5%

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Correct Answer: Option B

Explanation:
4 kg = 4000 g, (400/4000)×100 = 10%.

This question belongs to: Maths Percentage

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