What will be the compound interest on a sum of Rs. 25000 after 3 years at the rate of 12% per annum? MCQ with Answer and Explanation

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What will be the compound interest on a sum of Rs. 25000 after 3 years at the rate of 12% per annum?

A. Rs. 9720.00

B. Rs. 10483.20

C. Rs. 10123.20

D. Rs. 9000.00

Answer: Option C

Solution (By JKSSB Mock Tests)

Amount = 25000 * (1 + 12/100)^3 = 25000 * (1.12)^3 = 25000 * 1.404928 = Rs. 35123.20. Compound Interest = 35123.20 - 25000 = Rs. 10123.20.

This question belongs to: Maths Compound Interest

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Question #1

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The present population of a town is 44100. If it increases at 5% per annum, what was the population 2 years ago?

A. 41000

B. 40000

C. 43000

D. 42000

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Correct Answer: Option B

Explanation:
Population 2 years ago = 44100 / (1.05)² = 44100 / 1.1025 = 40000.

This question belongs to: Maths Compound Interest

Question #2

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At what rate percent per annum will a sum of Rs. 1000 amount to Rs. 1331 in 3 years at compound interest?

A. 9%

B. 10%

C. 12%

D. 11%

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Correct Answer: Option B

Explanation:
1000 × (1 + R/100)³ = 1331 ⇒ (1 + R/100)³ = 1.331 = (1.1)³ ⇒ R/100 = 0.1 ⇒ R = 10%.

This question belongs to: Maths Compound Interest

Question #3

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The simple interest on a sum at 5% for 3 years is Rs. 600. The compound interest on the same sum for 2 years at 5% is:

A. Rs. 405

B. Rs. 410

C. Rs. 415

D. Rs. 400

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Correct Answer: Option B

Explanation:
P = 60000/(5×3) = 4000. CI = 4000[(1.05)² − 1] = 4000 × 0.1025 = Rs. 410.

This question belongs to: Maths Compound Interest

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