Question

In what time will Rs. $72$ become Rs. $81$ at $6\frac{1}{4}\%$ p.a. simple interest?

• A. $2$ years
• B. $3$ years
• C. $2$ years $6$ months
• D. $4$ years

Answer 1

Answer: (A)

$2$ years

Given, $P=$ Rs. $72$, $A=$ Rs. $81,R$ $=\frac{25}{4}\%$

S.I. $=81-72=$ Rs. $9$

Time $=\frac{S.I\times 100}{P\times R}$

$\Rightarrow \frac{9\times 4\times 100}{72\times 25}=2$ years