Question

simple interest on a sum of money is 4÷9 of principle. find the rate percent and time if both are equal

Answer 1

Let Sum = Rs.x

then , SI =  Rs.4x/9

Let Rate = R %

And Time = R years

Then , [x * R * R/100]= 4x/9

So , R^2 = 400/9

R = 20/3 

Then , rate of interest = 6 2/3 %

And time = ^ years 8 months