Question

The simple interest on a sum of money is 1 9 th of the principal and the number of years is equal to the rate percent per annum. The rate of interest per annum is​

Answer 1

Answer:

Step-by-step explanation:

Here It's given that SI:P=1:9

wkt. SI =PRT/100

Put SI =x and P=9x and R =T

We will get equation

×=9x *R*R/100

R^2= 9 /100

R= 3/10 =0.3