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 :

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 : Correct Answer 16

Let C.P of each article be 1. ,, ,, x ,, is x S.P ,, ,, x ,, is 20 Profit = (20 - x) ∴20 - xx×100 = 25 ⇒ 2000 - 100x = 25x ⇒ 125x = 2000 ∴ x = 16
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