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  1. When two ALU 1C 74181 are cascaded

    2. A.
    the carry out of first stage is connected to carry in of second stage
    B.
    the carry in of first stage connected to carry in of second stage
    C.
    the carry in of first stage is connected to carry out of second stage
    D.
    the carry out of first stage is connected to carry out of second stage

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    Answer : Option A

    Explanation :

    In cascading carry out of first stage is connected to carry in of second stage.

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