Question

The simple interest on a sum of money is 25percent of the principal and the number of year is equal at the rate percent per annum. Find the rate?

Answer 1

Let rate % be x
Time = x years
Let P be Rs y
I= Rs y
R=

$(100 \times i) \div \: pt$
x=(100×y)÷yx
x=100/x
x square= 100
x=10

Ans = 10%

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