Question

what sum would you earn on intrest of rs 36 in 3 years at 3% per year?​

Answer 1

Solution!!

The concept of simple interest has to be used here. The simple interest, rate of interest and time is given in the question. We have to find the principal.

We will use the simple interest formula to find the interest.

Interest = Rs 36

Rate of interest (R) = 3%

Time (T) = 3 years

Principal (P) = ?

Interest = (P × R × T)/100

36 = (P × 3 × 3)/100

3600 = P × 3 × 3

3600 = P × 9

3600 ÷ 9 = P

P = 400

Hence, the principal is Rs 400.

The questioner may ask you to find the amount also. So, here's how you can find the amount.

Amount = Principal + Interest

Answer 2

Answer:

I = PRN/100....formula

= 36*3*3/100

= 324/100

= 3.24