the average score of a cricketer for 10 matches is 38.9 runs . if the average for the first 6 matches is 42 , then find the average for the last 4 matches .  Choose the correct answer
A) 33.5
B) 33.5
C) 34.25
D) 35
E) none of these

Rationale: solution required average = ( 38.9 x 10 ) - ( 42 x 6 ) / 4 = 137 / 4 = 34.25 answer c
Answer: C