A man purchases 8 pens for Rs.9 and sells 9 pens for Rs.8, how much profit or loss does he make?	Answers.
A) 20.88%loss  B) 20.98%loss  C) 20.78%loss  D) 20.38%loss  E) 10.98%loss
81 ---- 17   100 ----- ? è 20.98%loss   Answer:20.98%loss
<result>B</result>
A man purchases 8 pens for Rs.9 and sells 9 pens for Rs.8, how much profit or loss does he make?