Question

Pens are bought at 5 for rs 4 and sold at 4 for rs 5. Find the gain percent

Answer 1

Step-by-step explanation:

LCM of 5×4=20

buying 5pens=rs.4 c.p of 20 pens (20×4)/5=16 selling 4pens=rs.5 s.p of 20 pens=(20×5)/4=25 profit=s.p-c.p=25-16=9 profit%=(100×9)/16=900/16=56.2%