Question

4,096 amounts to 4,913 in 18 months when interest is compounded semi-annually. find the rate of interest per cent per annum.​

Answer 1

Answer:

Rate = 12 ½% per annum = 25/2% = 25/2/2 = 25/4% half yearly Amount = Rs 4913 Time (t) = 18months = 18/12years = 3/2 × 2 = 3 half years By using the formula, A = P (1 + R/100) n 4913 = P (1 + 25/4 ×100)3 P = 4913 / (1 + 25/400)3 = 4913/1.19946 = 4096 ∴ The principal amount is Rs 4096.Read more on Sarthaks.com - https://www.sarthaks.com/670502/what-sum-will-amount-to-4913-in-months-the-rate-interest-per-annum-compounded-half-yearly

Step-by-step explanation: