Question

6. The simple interest on a sum of money is 4/9 of the principal. find the rate percent and time, if both are numericall equal.


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Answer 1

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=prt/100

4x=9xyy/100

400/9=y^2

y=20/3

so

r= 20/3 %

t =20/3 years