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Profit and Loss


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


Answer: Option b

Explanation:

CP*20 = SP*x
Profit % = (SP - CP)/CP*100
         = [(SP/CP) - 1] * 100
         = (20/x - 1) *100 = 25%
20/x - 1 = 1/4
     20/x = 5/4
          x = 16



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