An amount of Rs.4800 is invested with compound interest applied for three consecutive years. The interest rates are 10% for the first year, 20% for the second year, and 25% for the third year. What is the total interest earned after three years?

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Subject: Compound Interestmathematics-mcqs › compound-interest
Published: 23 Sept 2019
Last updated: 28 May 2026

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Explanation

Let the final amount after three years be A. Using compound interest with varying rates: A = 4800 × (1 + 0.10) × (1 + 0.20) × (1 + 0.25) = 4800 × 1.10 × 1.20 × 1.25 = Rs.7920. The interest earned is the difference between the final amount and the principal: 7920 - 4800 = Rs.3120.

Practice related questions from the same subject.

1.Hafeez invested Rs. 15,000 at an annual interest rate of 10%, compounded semi-annually. What will be the total amount he receives after one year?
2.A person deposits Rs. 200 at the end of each year and lends it at a compound interest rate of 5%. What will be the total amount after 3 years?
3.Calculate the compound interest earned on Rs. 25,000 invested for 3 years at an annual interest rate of 12%.
4.Shohaib placed Rs. 8000 in a fixed deposit scheme for 2 years with an annual compound interest rate of 5%. What will be the total amount received by Shohaib at the end of the tenure?
5.Afnan borrows Rs.6000 at a simple interest rate of 6% per annum and then invests the same amount at compound interest at the identical rate for two years. What is his net gain from this transaction?
6.Rayan invested money at two simple interest rates: 6% per annum and 7% per annum. If the interest earned from both investments is the same, what is the ratio of the amounts invested at these two rates?
7.If Rs.12,000 earns Rs.7,200 as simple interest over five years at a certain rate, what is the compound interest on the same principal and period at that rate?
8.What is the difference in compound interest earned on Rs. 12,000 at an annual rate of 20% when compounded annually versus semi-annually for one year?

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An amount of Rs.4800 is invested with compound interest applied for three consecutive years. The interest rates are 10% for the first year, 20% for the second year, and 25% for the third year. What is the total interest earned after three years?

Explanation

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