Question

in how many years will a sum of money double itself at 10% per interest

Answer 1

Hey, sup!

I am assuming that we are calculating simple interest here,
So as per the question,
10% increase in =1 year
So 1% increase in =1/10year.
So 100% increase =1/10 ×100=10.
So 100% increase in 10 years.

A sum of money will double itself in 10 years at 10% interest.

Hope it helps.

Answer 2

I am shortly giving ans =10 years.