Answers

2016-01-07T18:36:14+05:30
X=16 
CP of 20 articles = SP of x articles
profit=25%
therefore x+25%of x=20
x+(1/4)x=20
∴5x/4=20
5x=80
& x=16

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2016-01-07T20:33:28+05:30
X=16....CP of 20=SP of x
profit is given to be 25%
hence x+25%of x =20
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