A cricketer has a certain average for 9 innings. In the tenth innings, the score is 100 runs, thereby increasing his average by 8 runs. His new average is:

 

  • Option 1)

     

    20 runs

     

  • Option 2)

     

    24 runs

     

  • Option 3)

     

    28 runs

     

  • Option 4)

     

    23 runs

     

  • Option 5)

     

    32 runs

     

Answers (2)

Let average of 9 innings = x
Sum of 9 innings = 9x
Score in 10th inning = 100
Total after 10 innings = 9x + 100
New avg. = x+8
Average = Sum/ Average
=> x+8 = (9x+10)/10
=> 10x + 80 = 9x + 100
=> x= 20,
New avg. = x+8 = 28

Option 3

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