The cost price of 15 pens is equal to the selling price of 20 pens, than the loss percent is?
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Let the CP of 1 pen be Rs.x.
Therefore, the CP of 15 pens = Rs.15x
CP of 15 pens = SP of 20 pens
SP of 20 pens = Rs.15x
SP of 1 pen. = Rs.15x/20
= ₹3x/4
Loss. = CP - SP
= ₹x - ₹3x/4
= ₹x/4
Loss percentage = loss/ CP *100
= (₹x/4) / ₹x *100
= 25
Ans. = The loss percentage is 25%.
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