A sum of money is deposited in a bank at the rate of 10% per annum simple interest. in how many years will the deposited money be doubled

It would take 10 years for the given sum of money be doubled at the given simple interest rate.

Explanation:

A 10% interest would be added to the the principal amount after each year. So the interest would reach 100% i. e. equal to the principal amount in 10 years.

Best Regards!

Let the money be p and let it take n years for the money to double.

Now,

Interest = Amount-Principle = 2p-p=p

ATP,

p*10*n/100 = p

n/10=1

n=10

Thus time required is 10 years