Question

If the cost price of 5 pens is equal to the selling price of 4 pens of the same kind,find the profit percentage.

Answer 1

Answer:

5 pens=4pens

5x20=100

4x20=80%

Answer 2

Answer:

here your answer

Step-by-step explanation:

let cp of one pen be x

cp of 5 pen = 5x

cp of 5 pen = sp of 4 pen

5x = sp of 4 pen

4x = cp of 4 pen ( cp of 1 pen = x)

profit = 5x-4x

= x

profit % = profit / cp ×100

= x/4x × 100

= 25 %

Hope it helps you