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- Quantitative Aptitude
7.Profit and Loss
medium
Nutan bought $30$ dozens of oranges for her juice stall in the school fair. She paid $Rs.\, 8$ per dozen of oranges. She also had to pay $Rs\, 500$ as the stall fee to the school authorities. She calculated that each glass'of juice would need $3$ oranges. How much should she charge per glass of juice so as to make $20 \%$ profit in $Rs?$
A
$7.20$
B
$7.40$
C
$7.60$
D
$7.80$
Solution
Total $CP$
$=[ CP$ of $30$ dozen orange $]+[ CP$ of stall fee $]$
$\Rightarrow 8 \times 30+500=$ $Rs. 740$
Here, Nutan calculated that each glass needs $3$ oranges and she wants to make $20 \%$ profit
Per glass price $=\frac{740}{30 \times 12} \times 3 \times 1.20=$ $Rs. 7.40$
Standard 13
Quantitative Aptitude