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SSC Sample Paper Mock Test-10 SSC CGL Tear-II Paper-1

  • question_answer
    The    digit    in    the    unit's    place    of \[[{{(251)}^{98}}+{{(21)}^{29}}-{{(106)}^{100}}+{{(705)}^{35}}-{{16}^{4}}+259]\] is

    A)  1

    B)  4

    C)  5

    D)  6

    Correct Answer: B

    Solution :

    \[{{(251)}^{98}}=...1,\]\[{{(21)}^{29}}=1,\]\[{{(106)}^{100}}=6\] \[{{(705)}^{35}}=...5,\]\[{{(16)}^{4}}=...6,\]\[259=...9\] \[\therefore \]Required answer\[=1+1-6+5-6+9\] \[=16-12=4\]


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