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:
A. 15
B. 16
C. 18
D. 25
E. None of the above

Answer is: B cost 125y/100 (profit=25%) => 20 article ( cost 100%y = y) => X article X = (20y/(1.25y) X = 16....Ans....

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