Rahim bought 42 books for Rs.520 from one shop and 22 books for Rs.248 from another. What is the average price he paid per book ? Choose the correct choice from the following: A) s.17 B) s.18 C) s.12 D) s.11 E) s.10
Average price per book   = (520 + 248) / (42 + 22) = 768/ 64   = Rs.12   Answer:s.12
<result>C</result>
Rahim bought 42 books for Rs.520 from one shop and 22 books for Rs.248 from another. What is the average price he paid per book ?