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

  • question_answer
    The average of the marks obtained in an examination by 8 students was 51 and by 9 other students was 68. The average marks of the 17 students was :

    A) 59                    

    B) 59.5

    C) 60                    

    D) 60.5

    Correct Answer: C

    Solution :

    Sum of total number of 8 students in exam \[=8\times 51=408\] Sum of total number of 9 students in exam \[=\text{ }9\times 68\text{ }=712\] \[\therefore \] Required average \[=\frac{408+712}{17}\] \[=\frac{1020}{17}\approx 60\]


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