Question

The simple interest on a sum of money is 4/9 of the principal.find the rate percent and time .i both are numerical equal

Answer 1

check out my answer and told me

Answer 2

Answer:r= 20/3 %

t =20/3 years

Step-by-step explanation:

let the sum is 9x. so interest is 4x time is y so rate is also y

we know that

$i=\frac{p*r*t}{100}\\\\4x=\frac{9x*y*y}{100}\\\\\frac{400}{9}=y^{2}\\\\y=\frac{20}{3}$

so

r= 20/3 %

t =20/3 years