Question

A sum of money doubles itself at C.I. in 15 years . In how many years will it become 8 times?

Answer 1

Answer:

If the sum doubles (x2) in 15 years, then it to become 2*2*2 = 8 times as large it should double three times, so three 15 years time period are needed, which is 3*15 = 45 years

I hope this will help

Answer 2

Step-by-step explanation:

the sum is doubled

2×2×2=8

so 8×15=120