A certain sum on compound interest becomes 56,180 when

Solution

Amount at the end of the second year, A² = 56,180 Amount at the end of the third year, A³ = 59,550.80 Hence, interest incurred during the second year to the third year = 59,550.80- 56,180 = ₹3370.8 Let the principal sum be Rs. P and the rate of interest be R%. CI of the first year = SI of the first year 3370.8= (56180xRx1)/100 (For the second year, the principal amount should be Rs. 56,180) R = 6% According to the question, P (1 + 6/100)² = 56,180 P= (56180)/11236×10000 P=50000