The ratio of the number of players in the three cricket teams A, B and C is 2 : 5 : 3. If the ratio of number of runs scored per player for each of the three teams A, B and C, is 30 : 17 : 25 respectively, then what is the average number of runs scored per player across all the three teams collectively?

A. 20

B. 21

C. 22

D. 23

Answer: Option C

Solution(By Examveda Team)

$$\eqalign{ & A:B:C = 2:5:3 \cr & {\text{Average}} = \frac{{30 \times 2 + 17 \times 5 + 25 \times 3}}{{10}} \cr & = \frac{{60 + 85 + 75}}{{10}} \cr & = 22 \cr} $$