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
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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
so
r= 20/3 %
t =20/3 years
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