If the average marks of three batches of 55, 60 and 45 students respectively is 50, 55, 60, then the average marks of all the students is: - Study24x7
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27 followers study24x7 29 Jun 2021 10:16 AM study24x7 study24x7

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

A

53.33

B

54.68

C

55

D

None of these

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