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Railways Sample Paper RRBs Assistant Loco Pilot and Technician CBT STAGE-I Sample Paper-9

  • question_answer
    Choose the one which is different from the rest three.

    A)  392     

    B)         326

    C)  414     

    D)  248

    Correct Answer: A

    Solution :

    \[3\times 9\times 2=54\] \[3\times 2\times 6=36={{6}^{2}}\] \[4\times 1\times 4=16={{4}^{2}}\] \[2\times 4\times 8=64={{8}^{2}}\] Hence, in all the given numbers except  the product of digit is a perfect square. But in option  the product of digits (54) is not perfect square. Hence,  is the odd option.


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