Question

If a sum becomes double in 16 years, how many times will it be in 8 years?

Answer 1

Given: A sum doubles itself in 16 years.

To discover how often will it be in 8 years.

Assume we have any whole of Money say 100.

The questions say total turns out to be double in 16 years ie 100 will progress toward becoming (100+100)=200.

In this manner, it increases 100% out of 16 years Eg.If I store $100 in the bank at that point as per the question, I would get $200( $100 which I saved and $100 additional as interest).

So on the off chance that it increases 100% of every 16 years then in 8 years, it would increase half.

In the event that I saved $100 in 8 yrs I would get half additional on 100 ie (100+50=150).

So 1.50 or One and a half times is the appropriate answer.

Answer 2

Step-by-step explanation:

We know that, simple interest si=prt/100

Sum become double in 16 years means, p+(16pr/100)=2p

From above question we get, r=100/6

Now, in 8 years, it will become, p+(8p*100)/16/100

=>p+p/2=1.5

So ans is 1.5 years