Simple Interest Practice Test 3

Question : 12 of 40

Marks: +1, -0

Simple interest on a certain amount is

9 /25

of the principal. Find out the time for which the principal is borrowed, if the rate of interest and the time is equal.

Solution:

Let sum b P, then

SI =9/25P

Rate = T%, Time = T years

9/25P={P×R×T}/100

T^2=9/25P×100/P

T=6

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