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    Question

    Determine the unit digit of the product:

    785Γ—6194Γ—319Γ—1296
    A 5 Correct Answer Incorrect Answer
    C 2 Correct Answer Incorrect Answer
    D 6 Correct Answer Incorrect Answer

    Solution

    Unit digit of the product of 785 Γ— 6194 Γ— 319 Γ— 1296 = unit digit of the product of the unit digits of each of the 4 numbers i.e. unit digit of 5 Γ— 4 Γ— 9 Γ— 6 = 1080 Unit digit of 1080 is β€˜0’

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