Question

The S.I. on a sum of money is 4/9 of the
Principal and the no. of years is equal to
the rate of interest per annum.
Find the rate of interest Per annum.​

Answer 1

Answer:

20/3

Step-by-step explanation:

Given,

SI=4P/9

R=T

We know that SI = PTR/100 which when rearranged gives

RT=SI*100/P

Substituting the corresponding values,

R*R = 4P*100/9P

the principle gets cancelled on the numerator and the denominator

R^2= 400/9

applying square root on both sides,

R = 20/3

Hope this helps :)