# What will be Time Required ? If

Answered

In certain years a sum of money is doubled itself at 6.25% simple interest per annum, then the required time will be

- 12.5 years
- 16 years
- 32/3 years
- 8 years

Best answer

**Answer: (2) 16 years**

**Explanation:-**

Given-

Rate = 6.25 %,

Let the principal be Rs. X ,

Then, the amount = 2 X Simple Interest = 2 X- X = X

**Formula-**

**Simple Interest = P x R x T/100**

**Where, P = principal , R = rate, & T = time.**

Then, X = X x 25 x T /100 x 4

1 = T/ 4 x 4

T = 16 years/

Hence, the answer is (2) 16 years.