Question

What sum would yield an interest of Rs.36 in 3 years at 3% p.a.?

Answer 1

Answer: 400

Step-by-step explanation:

Let the principle sum =  x

Time "n" = 3 years

Rate = 3% per annum

Simple Interest = 36

Simple Interest  =  P x R x T / 100  

36 =  x . 3 x 3 / 100  

x = 36 x 100 / 9  

x = 400

Hence the sum that would yield interest is 400.

Answer 2

Given - Principal, rate and time

Find - Amount

Solution - An interest of Rs.36 in 3 years at 3% p.a. will yield Rupees 39.24

Simple interest can be calculated by the formula = Principal*rate of interest*time/100

Keeping the values in the formula to find the interest.

Interest = 36*3*3/100

Interest = Rupees 3.24

Finding amount by the formula = Principal + interest

Amount = 36 + 3.24

Amount = Rupees 39.24

Thus, the interest of Rs.36 in 3 years at 3% p.a. will yield Rupees 39.24