A men gains 20 % by selling an article for a certain price. If he sells it at double price, what wil

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7.Profit and Loss

medium

A men gains $20 \%$ by selling an article for a certain price. If he sells it at double the price, what will be the percentage of profit?

A

$10$

B

$30$

C

$15$

D

$140$

Solution

$S.P.$ $_{1}=\frac{120}{100} \times$ $C.P.$

$S.P.$ $_{2}=2$ $S.P.$ $_{1}=\frac{240}{100} \times$ $C.P.$

$\therefore \quad \%$ profit $=\frac{ S.P. _{2}- C.P. }{ C.P. } \times 100=140 \%$

Standard 13

Quantitative Aptitude

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