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SSC Quantitative Aptitude Average Question Bank Average (II)

  • question_answer
    The arithmetic mean of 100 observation is 24, 6 is added to each of the observations and then each of them is multiplied by 2.5. Find the new arithmetic mean.

    A) 30

    B) 75

    C) 35

    D) 60

    Correct Answer: B

    Solution :

    [b] By adding 6 to each of the observations, their average will be 6 more i.e.,                                                                             \[24+6=30\] Now, by multiplying 2.5 in each of the observation, AM will also be multiplied by 2.5. Thus, new                                                                \[\text{AM}=30\times 2.5=75\]


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