Question

the selling price of 10 pens is equal to cost price of 14 pens, find the gain percent​

Answer 1

Step-by-step explanation:

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Answer 2

SP of 10 pencils = CP of 14 pencils

10x=14y

x =7

y=5

profit= SP -CP

=7-5

=2

gain% = 2/5*100

=40%