A sum becomes Rs. 11200 after 3 years and Rs. 12800 after 5 years at simple interest. The sum is MCQ with Answer and Explanation

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A sum becomes Rs. 11200 after 3 years and Rs. 12800 after 5 years at simple interest. The sum is

A. Rs. 8000

B. Rs. 9000

C. Rs. 8500

D. Rs. 7500

Answer: Option A

Solution (By JKSSB Mock Tests)

Difference for 2 years = 1600. SI for 1 year = 800. SI for 3 years = 2400. Principal = 11200 - 2400 = 8000.

This question belongs to: Maths Simple Interest

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Question #1

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In how many years will Rs. 4446000 amount to Rs. 6224400 at 8% simple interest?

A. 6 years

B. 7 years

C. 5 years

D. 4 years

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Correct Answer: Option C

Explanation:
SI = 1778400. T = (1778400 × 100)/(4446000 × 8) = 5 years.

This question belongs to: Maths Simple Interest

Question #2

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The rate at which Rs. 153000 amounts to Rs. 198900 in 3 years is

A. 8%

B. 12%

C. 9%

D. 10%

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Correct Answer: Option D

Explanation:
SI = 45900. R = (45900 × 100)/(153000 × 3) = 10%.

This question belongs to: Maths Simple Interest

Question #3

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The principal that gives Rs. 932400 interest in 8 years at 13% SI is

A. Rs. 900000

B. Rs. 899000

C. Rs. 901000

D. Rs. 898000

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Correct Answer: Option A

Explanation:
P = (932400 × 100)/(13 × 8) = 900000.

This question belongs to: Maths Simple Interest

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