Pujara has certain average of runs for his 8 matches in border gavaskar trophy.In the ninth match he scores 100 runs and thereby increses his average by 9 runs.His new average of runs is:
a)20 b)24
c)28 d)32

• c) 28
  If the old average=x ,the total run upto 8 matches=8x
  Given (8x+100)/9=x+9 or 8x+100=9x+81 ,x=19
  New average=(8*19+100)/9=28
  
  
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