Question

If the selling price of 12 pens is equal to the cost price of 15 pens . Find the gain %.​

Answer 1

Step-by-step explanation:

Let the selling price of 12 pens be Rs120.

So the cost price of 15 pens is Rs120.

SP of 1 pen=120/12=Rs10

CP of 1 pen=

120/15=Gr8

Gain =10-8=Rs2

Gain percentage =2/8×100=25%