A batsman scored 18 runs in his 18th innings and that makes his average 18. Find his average upto the
17th innings?

• total run upto 18 inning= 18*18 (inning*average)=324 ,
  total run upto 17 inning = 324-18= 306 ,(batsman create 18 run in 18th inning) avg of 17 inning =306/17 =18 answer
• 12 years agoHelpfull: Yes(16) No(0)
• 18
  {x1+x2+x3+..................x17+18}/18=18
  x1+x2+...............x17=18{18-1}
  x1+x2+..............x17}/17=18
  hence 18 is required answer.
  r u satisfied then tell me your sugestion
• 12 years agoHelpfull: Yes(6) No(1)
• total innings=18
  avg=18
  so total run at 18th innings is 18*18=324
  total at 17th inning=324-18=306
  now 306/17=18
  ans:18
• 12 years agoHelpfull: Yes(6) No(0)
• ya guys here we are ..i will explain this in a basic way
  First we take first sentence ...so normally he scored some runs up to 17 innings and in 18 innings he scored 18 runs which means
  
  x + 18
  --------- = 18
  18
  
  so the above equation goes like this...his total average 18(given) and totally 18 innings(given) and x is the total runs in 17 innings + 18 innings run which is 18.
  
  solving that u get x=306 ( which is , In 17 innings total runs scored by the batsman)
  so
  
  306
  --- = ?(tats the answer :) )
  17
  
  306/17 = 18
  
  and tats it ...do not complicate it..In maths whatever you feel from the question just write and solve you will get the answer easily !!! :p
• 12 years agoHelpfull: Yes(5) No(0)
• 18 which satisfy d solution...............
• 12 years agoHelpfull: Yes(3) No(0)
• may be 18 .
  Becoz he mad 18 runs in each inings..so
• 12 years agoHelpfull: Yes(2) No(0)