On a certain sum the simple interest at the end of 25 4 years becomes 3 8 of the sum The rate of int...........

Quant (SSC) Simple Interest

On a certain sum, the simple interest at the end of 25/4 years becomes 3/8 of the sum. The rate of interest is

Simple Interest /Principal = 3/8
∴ Rate = SI × 100 /Principal × Time
= 3/8 x 100 /25/4
= 3/8 x 400/25 = 6% p.a.

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