Profit and Loss | Arithmetic aptitude | Discussion Page

The ratio of the cost price and the selling price is 4 : 5. The profit percent is :

A) 10%

B) 20%

C) 25%

D) 30%

E) 40%

Option C

Let C.P = Rs. $4x$ , S.P = Rs. $5x$ .

Gain = Rs. $(5x-4x)$ = Rs. $x$ .

$\therefore$ Gain% $=\left(\frac{x}{4x}\times 100\right)$ % $=25$ %

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