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    If October 21 is a Sunday, what day will it be on November 21?
    Question

    If October 21 is a Sunday, what day will it be on November 21?

    A.

    Sunday

    B.

    Monday

    C.

    Wednesday

    D.

    Tuesday

    Correct option is C

    Given
    October 21 = Sunday
    Target Date = November 21

    Solution
    Total days in October = 31
    Days remaining in October = 31 - 21 = 10 days
    Days in November = 21 days
    Total days to count = 10 + 21 = 31 days
    Number of odd days =317=> \frac{31}{7} \Rightarrow​ Remainder = 3
    Required Day = Sunday + 3 days = Wednesday

    Final Answer
    So the correct answer is (c)

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