Ram bought 50 books for Rs.1750 from one shop and 10 books for Rs.650 from another. What is the average price he paid per book ?  Select.
A) 28 B) 18 C) 27 D) 29 E) 21
Average price per book   = (1750 + 650) / (50 +10)   = 2400/ 60   = Rs.40   Answer:29
<result>D</result>
Ram bought 50 books for Rs.1750 from one shop and 10 books for Rs.650 from another. What is the average price he paid per book ?