Question

    The last digit of the number 32015

    is
    A 1 Correct Answer Incorrect Answer
    B 3 Correct Answer Incorrect Answer
    C 5 Correct Answer Incorrect Answer
    D 7 Correct Answer Incorrect Answer

    Solution

    3 follows the rule of cyclicity Unit digit of 31 = 3 Unit digit of 32 = 9 Unit digit of 33 = 7 Unit digit of 34 = 1 Now,  When 2015 is divided by 4  Remainder = 3 ∴ Units digit of 32015 = 33 = 7 (last digit)

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