Simple Interest Practice Test 2

Question : 30 of 40

Marks: +1, -0

Simple interest on a certain amount is

49 /16

of the principal. If the rate of interest and time are equal, then find out the time for which the principal is borrowed.

Solution:

Let the sum be Rs P, then, SI =

49/ 16 P

Rate = R% Time = T years

∴SI={P×R×T}/100

49/16P={P×T×T}/100

{49P}/16×100/P=T^2

T=√{4900/16}=17.5\years

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