Question

Find the compound interest at the rate of 10% per annum for the three years on the principal which, in three years at the rate of 4% per annum gives Rs1200 as simple interest

Answer 1

let the principal be x
•in simple interest
1200=x×4×3/100
x =10000

compound interest=10000(1+10/100)³
10000×11/10×11/10×11/10
compound interest =₹ 13310

hope it helps