Question

Nikhil bought pens at 120 a dozen. He sold
them at * 150 a dozen. What was his profit or
loss per dozen? l in a correct way and step by step​

Answer 1

Cost of 12 pens(a dozen) = 120

selling price of 1 pen = 15

selling price of 12 pens = 12*15 = 180

profit = sp - cp = 180 - 120 = 60

profit % = profit / cp * 100

= 60/120*100

= 50%