| A fruit seller buys a box of 100 apples for Rs. 500 and spends Rs. 40 on transportation. Afterwards he finds that 25 apples were rotten which he sold for Rs. 24 per dozen. He sells the remaining at Rs. 84 per dozen. Find his gain per cent. |
A) \[6\frac{13}{27}%\]
B) \[6\frac{2}{9}%\]
C) \[8\frac{1}{5}%\]
D) \[8\frac{12}{15}%\]
Correct Answer: A
Solution :
| CP of 100 apples \[=500+40=\,\,\text{Rs}\text{. 540}\] |
| SP of 25 apples \[=\frac{24}{12}\times 25=\text{Rs}\text{. 50}\] |
| SP of remaining 75 apples \[=\frac{84}{12}\times 75=525\] |
| Total SP of 100 apples \[=525+50=575\] |
| \[\text{Gain}=SP-CP=575-540=35\] |
| \[\text{Gain }\!\!%\!\!\text{ }=\frac{35}{540}\times 100=6\frac{13}{27}%\] |
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