simple interest on a certain sum is 16 25 of the, Simple Interest, General Mathematics

Question:Simple interest on a certain sum is `16/25` of the sum. Find the rate percent and time, If both are numerically equal.

Answer Let sum = x. Then, S.I = `(16x)/25`

Let rate = R % and time = R years.

`:. (x xx R xx R)/(100)`

`= (16x)/25 or R^2 = (1600)/25 R = 40/5 = 8`

:. Rate = 8% and Time = 8 years.

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Simple interest on a certain sum is `16/25` of the sum. Find the rate percent and time, If both are numerically equal.

Question:Simple interest on a certain sum is `16/25` of the sum. Find the rate percent and time, If both are numerically equal.

Answer Let sum = x. Then, S.I = `(16x)/25` Let rate = R % and time = R years. `:. (x xx R xx R)/(100)` `= (16x)/25 or R^2 = (1600)/25 R = 40/5 = 8` :. Rate = 8% and Time = 8 years.