Question

a hawker gains the selling price of 4 boll point on selling one dozen pens what is his gain percentage​

Answer 1

profit is sp(selling price) -cp(cost price)

12(sp-cp)=4sp

8sp=12cp

sp/cp=12/8

profit percentage is( (sp-cp)/cp )100

or (sp/cp -1)100

(12/8 -1)100

(4/8)100

Answer 50%

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