The cost price of 20 articles is the same as the selling price of X article. If the profit is 25% then the value of X is?

A) 15

B) 16

C) 18

D) 25

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)

20 – x/x * 100=25

2000 – 100x = 25x

125x = 2000

x = 16