A sum becomes Rs. 33600 after 4 years and Rs. 37800 after 6 years at simple interest. The principal is MCQ with Answer and Explanation

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A sum becomes Rs. 33600 after 4 years and Rs. 37800 after 6 years at simple interest. The principal is

A. Rs. 24000

B. Rs. 26400

C. Rs. 25200

D. Rs. 22800

Answer: Option C

Solution (By JKSSB Mock Tests)

Difference for 2 years = 4200. SI per year = 2100. SI for 4 years = 8400. Principal = 33600 - 8400 = 25200.

This question belongs to: Maths Simple Interest

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Question #1

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A sum of Rs. 35600 amounts to Rs. 40584 in 2 years at simple interest. The rate is

A. 6%

B. 8%

C. 9%

D. 7%

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Correct Answer: Option D

Explanation:
SI = 4984. R = (4984 × 100)/(35600 × 2) = 7%.

This question belongs to: Maths Simple Interest

Question #2

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A sum of Rs. 3150000 amounts to Rs. 4410000 in 4 years at simple interest. The rate is

A. 12%

B. 10%

C. 8%

D. 9%

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Correct Answer: Option B

Explanation:
SI = 1260000. R = (1260000 × 100)/(3150000 × 4) = 10%.

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Question #3

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Simple interest on Rs. 1494000 for 3 years at 38% per annum is

A. Rs. 1703560

B. Rs. 1702960

C. Rs. 1703160

D. Rs. 1703360

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Correct Answer: Option C

Explanation:
SI = (1494000 × 38 × 3)/100 = 1703160.

This question belongs to: Maths Simple Interest

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