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      Question

      Find the unit digit of 3323 + 4235

      A 7 Correct Answer Incorrect Answer
      B 8 Correct Answer Incorrect Answer
      C 5 Correct Answer Incorrect Answer
      D 4 Correct Answer Incorrect Answer

      Solution

      Unit digit of 3323 = Unit digit of 34 X 5 + 3 = Unit digit of 33 = Unit digit of 27 = 7

      Unit digit of 4235 = Unit digit of 24 X 8 + 3 = Unit digit of 23 = 8

      Required unit digit = Unit digit of (8 + 7) = Unit digit of 15 = 5

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