s8eibritaHorazz1yla s8eibritaHorazz1yla

29-01-2017
Mathematics

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The mean of eight numbers is 83. the mean of another four numbers is 14. find the mean of the combined set of numbers.

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surjithayer surjithayer

30-01-2017

total numbers =8+4=12
[tex]mean= \frac{83*8+14*4}{8+4} [/tex][tex]mean= \frac{664+56}{12} = \frac{720}{12} =60[/tex]

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