Find the compound interest on Rs. 20000 for 1 year at 8% per annum, compounded quarterly. MCQ with Answer and Explanation

Find the compound interest on Rs. 20000 for 1 year at 8% per annum, compounded quarterly.
A. Rs. 1600.00
B. Rs. 1680.00
C. Rs. 1712.30
D. Rs. 1648.64
Answer: Option D
Solution (By JKSSB Mock Tests)
Quarterly rate = 8 / 4 = 2%. Time = 4 quarters. Amount = 20000 * (1 + 2/100)^4 = 20000 * (1.02)^4 = 20000 * 1.08243216 = Rs. 21648.64. Compound Interest = 21648.64 - 20000 = Rs. 1648.64.

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Practice More Compound Interest Questions

Question #1
The compound interest on Rs. 6000 at 5% per annum for 2 years is:
A. Rs. 615
B. Rs. 630
C. Rs. 600
D. Rs. 645

Correct Answer: Option A


Explanation:
A = 6000 × 1.1025 = 6615, CI = 6615 − 6000 = Rs. 615.

This question belongs to: Maths Compound Interest
Question #2
A sum of money at compound interest becomes 5 times in 3 years. In how many years will it become 25 times?
A. 4 years
B. 9 years
C. 5 years
D. 6 years

Correct Answer: Option D


Explanation:
5 times in 3 years; 25 = 5², so 3 × 2 = 6 years.

This question belongs to: Maths Compound Interest
Question #3
The effective annual rate of interest for 8% per annum compounded quarterly is:
A. 8.16%
B. 8.24%
C. 8.30%
D. 8.42%

Correct Answer: Option B


Explanation:
Quarterly rate 2%, (1.02)⁴ = 1.08243216, effective = 8.2432% ≈ 8.24%.

This question belongs to: Maths Compound Interest