The compound interest on a sum for 1 year at 10% compounded half-yearly is Rs. 102.50. The sum is: MCQ with Answer and Explanation

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The compound interest on a sum for 1 year at 10% compounded half-yearly is Rs. 102.50. The sum is:

A. Rs. 1050

B. Rs. 950

C. Rs. 1100

D. Rs. 1000

Answer: Option D

Solution (By JKSSB Mock Tests)

A = P(1.05)² = 1.1025P, CI = 0.1025P = 102.50 ⇒ P = 1000.

This question belongs to: Maths Compound Interest

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Question #1

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At what rate percent per annum will Rs. 30000 amount to Rs. 36300 in 2 years, compound interest compounded annually?

A. 12%

B. 8%

C. 14%

D. 10%

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Correct Answer: Option D

Explanation:
Amount/Principal = 36300 / 30000 = 121 / 100 = (11 / 10)^2. Therefore, 1 + R/100 = 11/10 => R/100 = 1/10 => R = 10%.

This question belongs to: Maths Compound Interest

Question #2

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Find the compound interest on Rs. 2500 at 12% per annum for 2 years.

A. Rs. 636

B. Rs. 640

C. Rs. 650

D. Rs. 630

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Correct Answer: Option A

Explanation:
A = 2500 × (1.12)² = 2500 × 1.2544 = 3136, CI = 3136 − 2500 = Rs. 636.

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Question #3

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Find the compound interest on Rs. 10000 at 8% per annum compounded quarterly for 1 year.

A. Rs. 816

B. Rs. 824.32

C. Rs. 832

D. Rs. 800

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Correct Answer: Option B

Explanation:
Quarterly rate = 2%, n = 4. A = 10000 × (1.02)⁴ = 10000 × 1.08243216 = 10824.3216, CI = Rs. 824.32.

This question belongs to: Maths Compound Interest

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