Question

Find out profit percentage if the cost price of 10pens is equal to the selling price of 8pen ​

Answer 1

Answer:

let us consider the CP as x

SP of 1 pen = x/8

CP of 1 pen = x/10

Since SP is more than CP its Gain

Gain = SP – CP

→ x/8 - x/10

= x/40

∴ Gain% = (Gain × 100) /CP

= ((x/40) × 100) / (x/12)

= x = 30%