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    Question

    Find remainder when 7103 is divided by

    100.
    A 12 Correct Answer Incorrect Answer
    B 43 Correct Answer Incorrect Answer
    C 23 Correct Answer Incorrect Answer
    D 38 Correct Answer Incorrect Answer

    Solution

    ATQ,

    Cycle of 7n mod 100 is 20. 103 mod 20 = 3 So remainder = 7³ = 343 → 43

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