Rahim bought 32 books for Rs.1500 from one shop and 60 books for Rs.340 from another. What is the average price he paid per book ?  Answers:
A) s . 17
B) s . 18
C) s . 12
D) s . 11
E) s . 20

Rationale: "average price per book = ( 1500 + 340 ) / ( 32 + 60 ) = 1840 / 92 = rs . 20 answer : e"
Answer: E