A man bought 13 articles at Rs. 70 each, 15 at Rs. 60 each and 12 at Rs. 65 each. The average price per article is -

A. Rs. 60.25

B. Rs. 64.75

C. Rs. 65.75

D. Rs. 62.25

Answer: Option B

Solution(By Examveda Team)

According to the question,
$$\eqalign{ & = \frac{{13 \times 70 + 15 \times 60 + 12 \times 65}}{{40}} \cr & = \frac{{910 + 900 + 780}}{{40}} \cr & = \frac{{2590}}{{40}} \cr & = 64.75 \cr} $$