Question

the sum of simple interest and compound interest after 2 years is Rs 202.50 and the rate is 5% per annum. find the principal?

Answer 1

Step-by-step explanation:

simple interest + compound intrest = 202.50 at 5% per annum for 2 years

{p*r*n/100 }+{ p(1+I)^n -p} = 202.50

p*5*2/100 + p (1+0.05)^2 -p= 202.50

10p/100 + p(1.1025) -p= 202.50

0.1p + 1.1025p- 1p = 202.50

1.2025-1p=202.50

0.2025 p= 202.50

p=202.50/0.2025

p= 1000