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Q:

If the average marks of three batches of 55, 60 and 45 students respectively is 50, 55 and 60, then the average marks of all the students is: 

  • 1
    55
  • 2
    54.68
  • 3
    53.33
  • 4
    None of these
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Answer : 2. "54.68 "

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