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the mean of first 8 observation …

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the mean of first 8 observation is 18 & the mean of last 8 observation is 20 .if mean of all 15 observation is 19 . find eighth observation

    • Posted by Shabana Khan 7 years, 10 months ago

    CBSE > Class 09 > Mathematics
    • 3 answers

    Pals B 7 years, 10 months ago

    Soory guyz....The correct answer is 19...

    1Thank You

    Pals B 7 years, 10 months ago

    Answer is 16

    0Thank You

    Lagan Bura 7 years, 10 months ago

    Nahi pata

    0Thank You

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    CBSE > Class 09 > Mathematics
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