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     EduGorilla 
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    A mobile software has been developed which consists of four switches, each of these switches can be in either the ON or the OFF
    positions. A switch when pressed will toggle its position i.e. if an ON switch is pressed it will become OFF and vice-versa.

    The initial position of the four switches is ON OFF ON OFF. A software glitch allows you to press any two adjacent switches at a
    time. How many different configurations can you get by repeated pressing of any two adjacent switches?

    Options :-

    1. 8
    2. 6
    3. 4
    4. 16
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