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Discussion :: Time and Clock

  1.  A watch which gains uniformly ,is 5 min,slow at 8 o'clock in the morning on sunday and it is 5 min 48 sec.fast at 8 p.m on following sunday. when was it correct?

  2. A.

    7pm on wednesday

    B.

    8pm on wednesday

    C.

    15 min past 7pm on wednesday

    D.

    20 min past 7pm on wednesday

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    Answer : Option D

    Explanation :

    This sunday morning at 8:00 AM, the watch is 5 min.
     
    Slow, and the next sunday at 8:00PM it becomes 5 min 48 sec fast.
     
    The watch gains  min in a time of  (7×24)+12 = 180 hours. 

    To show the correct tine, it has to gain 5 min.









    So the correct time will be shown on wednesdy at 7:20 PM


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