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Railways Sample Paper RRB (Group D) Sample Test Paper-5

  • question_answer
    DIRECTION: In the following question, select the number which can be placed at the sign of question mark (?) from the given alternatives.
    5 7 6 36
    10 ? 17 64
    9 11 8 56

    A)  5                    

    B)  6

    C)  7                    

    D)  8

    Correct Answer: A

    Solution :

    [a] According to question, As. \[(5+7+6)\times 2=36\] \[(9+11+8)\times 2=56\] Similarly, \[(10+?+17)\times 2=64\] \[(10+?+17)=\frac{64}{2}=32\] \[27+?=32\] \[?=32-\,27=5\]


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