the average marks of 40 students of section A is 80 and that of average marks of 50 students of section B is 60 . what is the average marks

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the average marks of 40 students of section A is 80 and that of average marks of 50 students of section B is 60 . what is the average marks of both sections ​

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Sadie 4 weeks 2021-08-20T19:11:55+00:00 1 Answer 0 views 0

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    2021-08-20T19:13:34+00:00

    Answer:

    Sum of average of both sections=(80+60)/2

    =140/2=70

    hence average of both sections is 70

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