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SSC Quantitative Aptitude Number System and its Operations Question Bank Numbers and Their Principles (I)

  • question_answer
    The unit digit in the product \[{{(2467)}^{153}}\times {{(341)}^{72}}\] is [SSC CGL Tier II, 2015]

    A) 3

    B) 9

    C) 1

    D) 7

    Correct Answer: D

    Solution :

    [d] Single unit \[{{(2467)}^{153}}\times {{(341)}^{72}}\]
    \[={{(7)}^{38\times 4+1}}\times {{(1)}^{4\times 182}}={{7}^{1}}\times 1=7\]


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