Rahul played well in this season. His current batting average is 51, If he scores 78 runs in today's match, his batting average will become 54. How many matches had he played in this season?

Options
1) 8
2) 10
3) 9
4) 6

• Let no. of current matches be n
  (51n+78)/n+1=54
  51n+78=54n+54
  3n=24
  n=8
• 8 years agoHelpfull: Yes(5) No(1)
• it should be 8+1=9(todays match)
• 8 years agoHelpfull: Yes(2) No(1)
• no of matches X
  runs of X matches is 51X
  runs of (X+1) matches is 51X+78
  ((51X+78) / (X+1)) = 54
  x= 8
  no of matches is 8+1 = 9
• 8 years agoHelpfull: Yes(2) No(1)
• ans is:6
  today's score=78
  current avg =51.. So 78-51=27 extra runs
  avg will be 54 i.e avg increases by 3...
  hence 27/3=9...9 runs per match..
  9*6=54....i.e 6
  
• 8 years agoHelpfull: Yes(0) No(2)
• 51x+78=54(x+1)
  x=8
• 8 years agoHelpfull: Yes(0) No(0)