Question

A sum of money becomes double in 10 years at a certain rate of interest. Find the rate of interest.
[Hint: Let P=rupees x, then A = 2x, 1 = x]​

Answer 1

Answer:

10%

Step-by-step explanation:

For a sum to become double, it has to increase by 100%

Then if it becomes double in 10 years, the interest will be 10% because 10×10=100

So 10% interest

(P. S sorry I didn't use your hint, it was confusing. I'd rather do it this way)