SSC Sample Paper SSC CGL - Sample Paper-10

  • question_answer
    The average weight of 20 students in a class is increased by 0.75 kg when one of the students weight 30 kg is replaced by a new student. Weight of the new student (in kg) is

    A)  35                               

    B)  40

    C)  45                               

    D)  50

    Correct Answer: C

    Solution :

    Required answer \[=30\,kg+20\times 0.75\,kg\] \[=30\,kg+15\,kg\] \[=45\,kg\]

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