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Railways Sample Paper RRB (Assistant Loco Pilot & Technician) Sample Test Paper-12

  • question_answer
    \[{{(12)}^{4.5}}\times {{(12)}^{?}}={{12}^{8}}\]

    A)  \[3.5\]                          

    B)  \[4.5\]

    C)  \[4.7\]                

    D)       \[5.5\]

    Correct Answer: A

    Solution :

     Let, \[{{(12)}^{4.5}}\times {{(12)}^{x}}={{12}^{8}}\] Then, \[{{(12)}^{4.5+x}}={{12}^{8}}\] \[=\text{ }4.5+\text{ }x=8\] \[x=3.5\]


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