The difference between CI and SI on Rs. 7200 for 2 years at 10% is: MCQ with Answer and Explanation

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The difference between CI and SI on Rs. 7200 for 2 years at 10% is:

A. Rs. 60

B. Rs. 80

C. Rs. 72

D. Rs. 68

Answer: Option C

Solution (By JKSSB Mock Tests)

D = 7200 × 0.01 = Rs. 72.

This question belongs to: Maths Compound Interest

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Question #1

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A sum of money at compound interest amounts to Rs. 10648 in 3 years and Rs. 11712.80 in 4 years. Find the sum.

A. Rs. 7000

B. Rs. 7500

C. Rs. 8000

D. Rs. 8500

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Correct Answer: Option C

Explanation:
Rate = (11712.80/10648 − 1) × 100 = 10%. P = 10648 / 1.331 = 8000.

This question belongs to: Maths Compound Interest

Question #2

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The difference between CI and SI on a certain sum for 2 years at 6% is Rs. 36. The sum is:

A. Rs. 8000

B. Rs. 10000

C. Rs. 11000

D. Rs. 9000

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Correct Answer: Option B

Explanation:
D = P × (0.06)² = P × 0.0036 = 36 ⇒ P = 10000.

This question belongs to: Maths Compound Interest

Question #3

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The difference between CI and SI on Rs. 6900 for 2 years at 10% is:

A. Rs. 72

B. Rs. 60

C. Rs. 65

D. Rs. 69

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Correct Answer: Option D

Explanation:
D = 6900 × 0.01 = Rs. 69.

This question belongs to: Maths Compound Interest

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