S.I. is Rs. 7200 on 12 p.c.p.a. for 6 years on a sum. C.I. (In Rs. ) on 5 p.c.p.a for 2 years?

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6.Interest

medium

The $S.I.$ is $Rs. 7200$ on $12$ $p.c.p.a.$ for $6$ years on a sum. What is $C.I.$ (In $Rs.$) on $5$ $p.c.p.a$ for $2$ years?

A

$1020$

B

$1055$

C

$1050$

D

$1025$

Solution

$P=\frac{S I \times 100}{R \times T}=\frac{7200 \times 100}{12 \times 6}=$ Rs. 10000

$\Rightarrow C I=P\left[\left(1+\frac{R}{100}\right)^{2}-1\right]=10000\left[\left(1+\frac{5}{100}\right)^{2}-1\right]=$ Rs. 1025

Standard 13

Quantitative Aptitude

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