Question

An amount doubles in 5years by the simple interest. How many years are required for the same amount with same rate of interest to get converted to five times the original amount?​

Answer 1

Answer:

12 yr 6 month will be to convert that amount

Answer 2

Answer:

20 years

Step-by-step explanation:

Let the sum be Rs x

Then SI = x*R*5/100

Amount = x+ xR/20 =2x (Given)

xR/20 = x

R=20% p. a.

Let required time be T years

5x = x*20*T/100 + x

4x = x*T/5

T= 20 years