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7.Profit and Loss
hard
A man bought $4$ dozen eggs at $Rs.\, 24$ per dozen and $2$ dozen eggs at $Rs.\, 32$ per dozen. To gain $20\%$ on the whole, he should sell the eggs at in $Rs.$ per dozen
A
$16$
B
$21$
C
$32$
D
$35$
Solution
$C.P$ of $4$ dozen eggs $=4 \times 24=₹ 96$
$C.P$ of $2$ dozen eggs $=2 \times 32=₹ 64$
Total $C.P$ $=₹ 160$
To have $P \%=20 \% \Rightarrow 120 \%$ ( 160 )
$=₹ 192$
$\therefore$ S.P of per dozen eggs $=\frac{192}{6}=Rs. 32$
Standard 13
Quantitative Aptitude
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