Find the compound interest on Rs. 1800 at 10% per annum for 1 year compounded half-yearly. MCQ with Answer and Explanation

Find the compound interest on Rs. 1800 at 10% per annum for 1 year compounded half-yearly.

A. Rs. 180

B. Rs. 189

C. Rs. 184.50

D. Rs. 190

Answer: Option C

Half-yearly rate 5%, n=2. A = 1800 × (1.05)² = 1800 × 1.1025 = 1984.50, CI = 1984.50 − 1800 = Rs. 184.50.

This question belongs to: Maths Compound Interest

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Question #1 Report Error

A sum of money at compound interest becomes 5 times in 4 years. In how many years will it become 25 times?

A. 10 years

B. 8 years

C. 6 years

D. 12 years

Correct Answer: Option B

Explanation:
25 = 5², so 4 × 2 = 8 years.

This question belongs to: Maths Compound Interest

Question #2 Report Error

The compound interest on Rs. 3700 at 10% per annum for 2 years is:

A. Rs. 851

B. Rs. 740

C. Rs. 777

D. Rs. 814

Correct Answer: Option C

Explanation:
A = 3700 × 1.21 = 4477, CI = 4477 − 3700 = Rs. 777.

This question belongs to: Maths Compound Interest

Question #3 Report Error

Find the amount on Rs. 1800 at 10% per annum compound interest for 2 years.

A. Rs. 2200

B. Rs. 2196

C. Rs. 2178

D. Rs. 2160

Correct Answer: Option C

Explanation:
A = 1800 × (1.1)² = 1800 × 1.21 = 2178.

This question belongs to: Maths Compound Interest