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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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