rahul played weel in this season.his current batting averagge is 50.if he score 78 runs in today match.his batting average will become 54.how many matches had he played in this season.
Choose the correct choice from the following answers:
A) 8
B) 10
C) 9
D) 6
E) 5

Rationale: "50 x + 78 = 54 ( x + 1 ) = > 4 x = 24 = > x = 6 answer : d"
Answer: D