What sum will amount to Rs. 7986 in 3 years at 10% compound interest? MCQ with Answer and Explanation

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What sum will amount to Rs. 7986 in 3 years at 10% compound interest?

A. Rs. 6000

B. Rs. 5500

C. Rs. 5800

D. Rs. 6200

Answer: Option A

Solution (By JKSSB Mock Tests)

P = 7986 / 1.331 = 6000.

This question belongs to: Maths Compound Interest

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Question #1

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What sum will amount to Rs. 14520 in 2 years at 10% per annum compound interest?

A. Rs. 12000

B. Rs. 13000

C. Rs. 14000

D. Rs. 11000

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Correct Answer: Option A

Explanation:
P = 14520 / (1.1)² = 14520 / 1.21 = 12000.

This question belongs to: Maths Compound Interest

Question #2

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A sum of money invested at compound interest doubles itself in 17 years. In how many years will it become 4 times of itself?

A. 42 years

B. 51 years

C. 26 years

D. 34 years

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Correct Answer: Option D

Explanation:
The sum doubles (2^1) in 17 years. It will become 4 (2^2) times in 2 * 17 = 34 years.

This question belongs to: Maths Compound Interest

Question #3

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The difference between CI and SI on Rs. 5600 for 2 years at 5% is:

A. Rs. 18

B. Rs. 14

C. Rs. 12

D. Rs. 16

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Correct Answer: Option B

Explanation:
D = 5600 × 0.0025 = Rs. 14.

This question belongs to: Maths Compound Interest

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