Discussion Forum



1)

The cost price of 20 articles is the same as the selling price of x articles. If the profit is 25%, then the value of x is :


A) 15

B) 16

C) 18

D) 25

E) 30

Answer:

Option B

Explanation:

Let C.P of each article be Re. 1.

C.P of $x$ articles = Rs. $x$;

S.P of x articles = Rs. 20.

Profit = Rs. $(20-x)$.

$\therefore$ $\frac{20-x}{x}\times 100 = 25$

$\Rightarrow 2000-100x=25x$

$\Rightarrow 125x=2000$

$\Rightarrow x = 16$