Question

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:
1)15 2) 16 3) 20
4) 25 5) None of these

Answer 1

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 - xx 100 = 25x

 2000 - 100x = 25x

125x = 2000

 x = 16.

Answer 2

Answer:

16

Step-by-step explanation:

Let, 1 article price = Re.1

CP of 20 article = 20

SP of x article = 20

CP of x article = x

P = 20 - x

P(%) = {(20 - x)/x} * 100

So, P(%) = 25

or, (20 - x)/x = 25/100

or, 80 - 4x = x

or, 5x = 80

or, x = 16