Ratio between selling price and cost price of an article is 7: 5 . ratio between profit and cost pri

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7.Profit and Loss

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The ratio between selling price and cost price of an article is $7: 5 .$ What is the ratio between the profit and the cost price of that article?

A

$2:7$

B

$5:2$

C

$7:2$

D

$2:5$

Solution

$\frac{ S.P. }{ C.P. }=\frac{7}{5}$

$\therefore \frac{\text { Profit }}{\text { C.P. }}=\frac{\text { S.P. }-\text { C.P. }}{\text { C.P. }}=\frac{7-5}{5}=\frac{2}{5}$

$\therefore \quad$ Profit $: C . P .=2: 5$

Standard 13

Quantitative Aptitude

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