Question

At what rate percent per annum will the simple interest on a sum of money be 2/5 of the amount in ten years​

Answer 1

A healthy mind stays in a healthy body and a healthy body healtfies the society, and later the healthy society healthifies a healthy nation.

Answer 2

Let the principal be x

Term = 10 years

Interest for 10 years= (2/5)x = 0.4 x

So interest rate for 1 year = 0.04x

Which is 4% of x

So, at 4% per annum simple interest, interest on the sum of money will be 2/5 of principal in 10 years.

Answer = 4% p.a.

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