The compound interest on Rs. 12,000 for 9 months at 20\% per annum, interest being compounded quarterly is: - Quantitative Aptitude MCQ Competitive Exam 2026 | ExamTest.live

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The compound interest on Rs. 12, 000 for 9 months at 20% per annum, interest being compounded quarterly is:

Solution & Step-by-step Explanation

Given: Principal (P) = Rs. 12, 000 Annual rate (R) = 20% p.a. Time (T) = 9 months Since the interest is compounded quarterly: Quarterly Rate (R^{'}) = \frac{20%}{4} = 5% per quarter Number of quarters (n) = \frac{9}{3} = 3 Amount (A): A = P (1 + \frac{R ^{'}}{100})^{n} = 12000 (1 + \frac{5}{100})^{3} = 12000 (\frac{21}{20})^{3} A = 12000 \times \frac{9261}{8000} = 1.5 \times 9261 = Rs. 13, 891.50 Compound Interest (C.I.): C.I. = A - P = 13891.50 - 12000 = Rs. 1, 891.50

Try it yourself before checking the explanation above.

The compound interest on Rs. 12, 000 for 9 months at 20% per annum, interest being compounded quarterly is:

Rs. 1750

Rs. 1891.50

Rs. 2089.70

Rs. 2136

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