Question

the simple interest on a sum for 5 years is twofifth of the sum.the rate percent per annum is​

Answer 1

The formula is:

SI = P *( R/100) * T

Where symbols have their usual meanings.

(2/5) * P = P * (R/100) * 5

R = 8 percent per annum is the answer.

Answer 2

Answer:

2/5px 1,00/px5=8% Answer