Question

By selling 35greeting cards a shopkeeper loses an amount equal to the selling price of 5greeting cards. Find his loss percent.

Answer 1

Selling price of 1 card x
Selling price of five cards 5x
Cp -sp=loss
Cp -35x=5x
Cp =40x
Loss%=5x/40x*100
Loss%=12.5

Answer 2

Let the sp of 1 greeting card be rs 1
Then sp of35 greeting card =35
And loss =1×5=5
Now,
Cp of 35 greeting cards =35+5=40

Loss % = loss × 100/cp
= 5×100/40
= 25/2
=12.5 %

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