Question

A man purchases 8 pens for Rs9 and sells 9 pens
for rupees 8. How much profit or loss does he
make?​

Answer 1

Answer:

Loss of ₹1.89/pen

Step-by-step explanation:

C.P. of 8 pens = ₹9

C.P. of 1 pen = 9/8

S.P. of 9 pens = ₹8

S.P. of 1 pen = 8/9

9/8 > 8/9

CP > SP

Therefore, he is at loss

Loss = CP - SP

        = 9/8 - 8/9

        = 81 - 64/9

        = 17/9 =  ₹1.89/pen (approx.)

Hope I helped

Answer 2

Rs.0 loss
Rs.0 profit