A sum becomes Rs. 20400 after 3 years and Rs. 22800 after 5 years at simple interest. The principal is MCQ with Answer and Explanation

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A sum becomes Rs. 20400 after 3 years and Rs. 22800 after 5 years at simple interest. The principal is

A. Rs. 15200

B. Rs. 16000

C. Rs. 17600

D. Rs. 16800

Answer: Option D

Solution (By JKSSB Mock Tests)

Difference for 2 years = 2400. SI per year = 1200. SI for 3 years = 3600. Principal = 20400 - 3600 = 16800.

This question belongs to: Maths Simple Interest

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Practice More Simple Interest Questions

Question #1

Simple interest on Rs. 765000 for 2 years at 27% per annum is

A. Rs. 412900

B. Rs. 413300

C. Rs. 413500

D. Rs. 413100

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Correct Answer: Option D

Explanation:
SI = (765000 × 27 × 2)/100 = 413100.

This question belongs to: Maths Simple Interest

Question #2

The rate at which Rs. 288000 amounts to Rs. 374400 in 3 years is

A. 9%

B. 10%

C. 8%

D. 12%

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Correct Answer: Option B

Explanation:
SI = 86400. R = (86400 × 100)/(288000 × 3) = 10%.

This question belongs to: Maths Simple Interest

Question #3

Years for Rs. 266000 at 8% to give Rs. 127680 interest

A. 7 years

B. 5 years

C. 6 years

D. 4 years

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Correct Answer: Option C

Explanation:
T = (127680 * 100)/(266000 * 8) = 6 years.

This question belongs to: Maths Simple Interest

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