MCQ 11 Mark
Mark $(\checkmark)$ against the correct answer in the following: On selling a jug for $Rs. 144,$ a man loses $\frac{1}{2}$ of his outlay. If it is sold for $Rs. 189,$ what is the gain percent:
- ✓$12.5\%$
- B$25\%$
- C$30\%$
- D$50\%$
Answer
View full question & answer→Correct option: A.
$12.5\%$
First $S.P.$ of jug $= Rs. 144$
Loss $=\frac{1}{7}$ of $C.P.$
Let $C.P. = x$
Then S.P $=\text{x}-\frac{1}{7}\text{x}$
$=\frac{6}{7}\text{x}$
$\therefore\frac{6}{7}\text{x}=144$
$\Rightarrow\text{x}=\frac{144\times6}{8}$
$=24\times7=\text{Rs. }168$
$\therefore C.P = Rs. 168$
Second $S.P. = Rs. 189$
Gain $= S.P. - C.P.$
$= 189 - 168 = Rs. 21$
$\text{Gain%}=\frac{\text{Gain}\times100}{\text{C.P}}$
$=\frac{21\times100}{168}=12.5\%$
Gain$\% = 12.5\%$
Loss $=\frac{1}{7}$ of $C.P.$
Let $C.P. = x$
Then S.P $=\text{x}-\frac{1}{7}\text{x}$
$=\frac{6}{7}\text{x}$
$\therefore\frac{6}{7}\text{x}=144$
$\Rightarrow\text{x}=\frac{144\times6}{8}$
$=24\times7=\text{Rs. }168$
$\therefore C.P = Rs. 168$
Second $S.P. = Rs. 189$
Gain $= S.P. - C.P.$
$= 189 - 168 = Rs. 21$
$\text{Gain%}=\frac{\text{Gain}\times100}{\text{C.P}}$
$=\frac{21\times100}{168}=12.5\%$
Gain$\% = 12.5\%$