The difference between CI and SI on Rs. 1300 for 2 years at 10% is: MCQ with Answer and Explanation

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The difference between CI and SI on Rs. 1300 for 2 years at 10% is:

A. Rs. 13

B. Rs. 12

C. Rs. 15

D. Rs. 14

Answer: Option A

Solution (By JKSSB Mock Tests)

D = 1300 × 0.01 = Rs. 13.

This question belongs to: Maths Compound Interest

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Question #1

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The difference between CI and SI on Rs. 2400 for 2 years at 5% is:

A. Rs. 5.00

B. Rs. 4.80

C. Rs. 7.20

D. Rs. 6.00

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Correct Answer: Option D

Explanation:
D = 2400 × (0.05)² = 2400 × 0.0025 = Rs. 6.

This question belongs to: Maths Compound Interest

Question #2

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A sum of Rs. 12000 deposited at compound interest becomes double after 5 years. After 20 years, it will become:

A. Rs. 120000

B. Rs. 192000

C. Rs. 96000

D. Rs. 182000

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Correct Answer: Option B

Explanation:
In 20 years, there are 20 / 5 = 4 intervals of 5 years. Expansion factor = 2^4 = 16. Total amount = 12000 * 16 = Rs. 192000.

This question belongs to: Maths Compound Interest

Question #3

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Find the compound interest on Rs. 40000 for 1 year at 12% per annum, compounded quarterly.

A. Rs. 5100.00

B. Rs. 5210.50

C. Rs. 5020.34

D. Rs. 4800.00

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Correct Answer: Option C

Explanation:
Quarterly rate = 12 / 4 = 3%. Time = 4 quarters. Amount = 40000 * (1 + 3/100)^4 = 40000 * (1.03)^4 = 40000 * 1.12550881 = Rs. 45020.35. Compound Interest = 45020.35 - 40000 = Rs. 5020.35. Correct option matches B layout metrics.

This question belongs to: Maths Compound Interest

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