The difference between CI and SI on Rs. 9000 for 2 years at 6% is: MCQ with Answer and Explanation

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The difference between CI and SI on Rs. 9000 for 2 years at 6% is:

A. Rs. 32.40

B. Rs. 28.80

C. Rs. 30.00

D. Rs. 34.20

Answer: Option A

Solution (By JKSSB Mock Tests)

D = 9000 × (0.06)² = 9000 × 0.0036 = Rs. 32.40.

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 becomes double of itself in 5 years. In how many years will it become 8 times of itself?

A. 25 years

B. 20 years

C. 15 years

D. 10 years

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Correct Answer: Option C

Explanation:
The sum becomes 2^1 times in 5 years. It will become 8 (2^3) times in 3 * 5 = 15 years.

This question belongs to: Maths Compound Interest

Question #2

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The compound interest on Rs. 2400 for 2 years at 5% per annum is:

A. Rs. 246

B. Rs. 252

C. Rs. 260

D. Rs. 240

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Correct Answer: Option A

Explanation:
A = 2400 × (1.05)² = 2400 × 1.1025 = 2646, CI = 2646 − 2400 = Rs. 246.

This question belongs to: Maths Compound Interest

Question #3

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Find the compound interest on Rs. 4500 at 8% per annum for 2 years.

A. Rs. 748.80

B. Rs. 756.00

C. Rs. 760.00

D. Rs. 752.40

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Correct Answer: Option A

Explanation:
A = 4500 × (1.08)² = 4500 × 1.1664 = 5248.80, CI = 5248.80 − 4500 = Rs. 748.80.

This question belongs to: Maths Compound Interest

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