Question

In how many times, the simple interest a certain sum of money at 5 % per ann 1 will be of itself? 4​

Answer 1

Answer:

20 Years.

Step-by-step explanation:

Let the Sum of money be = P.

Rate = 5% p.a.

Let time = t years.

Since in 't' time the Simple interest will become Principal so,

⇒ P = (Px5xt)÷100.

⇒ 100 = 5Pt/P.

⇒ 5t = 100.

therefore, t = 100/5 = 20.