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At 20% per annum rate, an amount is doubled in approximately in ______ years at compound interest

A5

B2

C4

D3

Answer:

C. 4

Read Explanation:

4


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How much will a sum of Rs 2500, invested at compound interest, amount to in 1 year at 4% interest rate, interest compounded half-yearly?
The amount at compound interest on a sum for 5 years is ₹ 7800 and for 6 years is ₹ 9048 (interest is compounded annually). What is the rate of interest?
A sum becomes Rs. 4500 after 2 years and Rs. 6750 after 4 years when invested on compound interest. Find the sum.
പ്രതിവർഷം 6% നിരക്കിൽ 2 വർഷത്തേക്ക് 2,500 രൂപക്ക് സാധാരണ പലിശയും കൂട്ടുപലിശയും തമ്മിലുള്ള വ്യത്യാസം എന്ത് ?
A principal amount of ₹8,000 is invested at an annual interest rate of 5% compounded half-yearly. What will be the compound interest earned after 4 years? [Use (1.025)8 = 1.2184]