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SSC Sample Paper SSC CHSL (10+2) Sample Test Paper-14

  • question_answer
    Out of 250 observations, the first 100 observations have mean 5 and the average of the remaining 150 observations is \[\frac{25}{3}\]. What is the average of the whole group of observations?

    A)  6                                

    B)  7

    C)  8                                

    D)  9

    Correct Answer: B

    Solution :

     Average of the whole group of observation      \[=\frac{100\times 5+150\times \frac{25}{3}}{250}=\]                 


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