Question

The simple interest on a sum 9/16 of the principal. What will be the rate of interest per annum if the numerical value of rate of interest is equal to the time period in years?​

Answer 1

Answer:

Simple interest = 56.25

Principal = ?

Now

Rate of interest and no. Of year are numerically same i.e.

Interest = pnr/100

56.25= 100 x 7.5 x 7.5

Since nothing is given principal is assumed to be 100