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. 22800

B. Rs. 26400

C. Rs. 24000

D. Rs. 25200

Answer: Option D

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

Rate percent when Rs. 30000 becomes Rs. 39000 in 3 years SI

A. 9%

B. 10%

C. 12%

D. 8%

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Correct Answer: Option B

Explanation:
SI = 9000. R = (9000 * 100)/(30000 * 3) = 10%.

This question belongs to: Maths Simple Interest

Question #2

In how many years will Rs. 3501000 amount to Rs. 4901400 at 8% simple interest?

A. 4 years

B. 6 years

C. 7 years

D. 5 years

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Correct Answer: Option D

Explanation:
SI = 1400400. T = (1400400 × 100)/(3501000 × 8) = 5 years.

This question belongs to: Maths Simple Interest

Question #3

In how many years will Rs. 1566000 amount to Rs. 2192400 at 8% simple interest?

A. 6 years

B. 7 years

C. 4 years

D. 5 years

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Correct Answer: Option D

Explanation:
SI = 626400. T = (626400 × 100)/(1566000 × 8) = 5 years.

This question belongs to: Maths Simple Interest

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