The compound interest on Rs. 12000 for 1 year at 10% per annum compounded half-yearly is: MCQ with Answer and Explanation

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The compound interest on Rs. 12000 for 1 year at 10% per annum compounded half-yearly is:

A. Rs. 1260

B. Rs. 1230

C. Rs. 1290

D. Rs. 1200

Answer: Option B

Solution (By JKSSB Mock Tests)

Half-yearly rate = 5%, periods = 2. A = 12000 × (1.05)² = 12000 × 1.1025 = 13230, CI = 13230 − 12000 = Rs. 1230.

This question belongs to: Maths Compound Interest

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Question #1

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A sum of money placed at compound interest triples itself in 5 years. In how many years will it become 9 times of itself?

A. 10 years

B. 8 years

C. 12 years

D. 15 years

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Correct Answer: Option A

Explanation:
The sum becomes 3^1 times in 5 years. It will become 9 (3^2) times in 2 * 5 = 10 years.

This question belongs to: Maths Compound Interest

Question #2

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What sum will produce Rs. 204 as compound interest in 2 years at 4% per annum?

A. Rs. 2500

B. Rs. 2700

C. Rs. 2600

D. Rs. 2400

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Correct Answer: Option A

Explanation:
P = 204 / 0.0816 = 2500.

This question belongs to: Maths Compound Interest

Question #3

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The compound interest on Rs. 5400 at 10% per annum for 2 years is:

A. Rs. 1188

B. Rs. 1200

C. Rs. 1134

D. Rs. 1240

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Correct Answer: Option C

Explanation:
A = 5400 × (1.1)² = 5400 × 1.21 = 6534, CI = 6534 − 5400 = Rs. 1134.

This question belongs to: Maths Compound Interest

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