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SSC Sample Paper SSC-CGL TIER - I Sample Test Paper-2

  • question_answer
    Three numbers are such that the average of first two numbers is 2, the average of the last two numbers is 3. and the average of the first and the last numbers is 4, then the average of three numbers is equal to:

    A)  2                    

    B)  3.5

    C)  3                    

    D)  2.5

    Correct Answer: C

    Solution :

     Let A, B and C be three numbers then, \[A+B=4,\text{ }B+C=6,\text{ }A+C=8\] \[2\left( A+B+C \right)=18~\Rightarrow A+B+C=9\] Their average = \[\frac{9}{3}=\]


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