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7.Profit and Loss
medium
A man buys $10$ articles for $Rs.\, 8$ and sells them at $Rs.\, 1.25$ per article. His gain percent is
A
$55$
B
$56 \frac{1}{4}$
C
$40$
D
None of these
Solution
cost price of $10$ articles $( C . P .)=Rs.8$
Selling price of $10$ articles $(S.P.)$ $=1.25 \times 10$
$=Rs. 12.50$
Profit $= S.P.$ $-C . P=12.50-8= Rs.4.50$
$\therefore \quad$ Gain $\%=\frac{\operatorname{Gain} \times 100}{C . P}=\frac{4.50 \times 100}{8}=56 \frac{1}{4} \%$
Standard 13
Quantitative Aptitude