1.

The cost price of 20 articles is same as the selling price of 16 articles. Find the gain percent.

Answer»

C.P. of 20 articles = S.P. of 16 articles. 

Let C.P. of 1 article = Re. 1 

C.P. of 20 articles = Rs.20 

and C.P. of 16 articles = Rs.16 

S.P. of 16 articles = Rs.20 

[S.P. of 16 articles = C.P. of 20 articles] 

Gain = Rs.20 – Rs.16 = Rs.4

Gain% = (4/16) x 100

= (4 x 100)/16

= 25%



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