Question

The difference between the compound interest , compounded annually and the simple interest on a

certain sum for 2 years at 15% per annum is Rs 10. Find the sum.
​

Answer 1

Answer:

Step-by-step explanation:

let principal be 100

amount = P (1+r)^t

100(1+15/100)^2

100(23/20)^2

100×23×23÷400

132.25

CI = amount-principal

132.25-100

32.25

SI= 100×15×2÷100

30

difference = CI-SI

32.25-30

2.25

principal=100/2.25×180 =8000

Answer 2

et principal be 100

amount = P (1+r)^t

100(1+15/100)^2

100(23/20)^2

100×23×23÷400

132.25

CI = amount-principal

132.25-100

32.25

SI= 100×15×2÷100

30

difference = CI-SI

32.25-30

2.25

principal=100/2.25×180 =8000