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Discussion :: Clock

  1. At what time between 7 and 8 o'clock will the hands of a clock be in the same straight line but, not together?

  2. A.

    5 min. past 7

    B.

    5\(\frac { 2 } {11 } \)min.past 7

    C.

    5\(\frac {3 } {11 } \)min.past 7

    D.

    5\(\frac {5 } {11 } \)

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    Answer : Option D

    Explanation :

    When the hands of the clock are in the same straight line but not together, they are 30 minute spaces apart.

     

    At 7 o'clock, they are 25 min. spaces apart.

     

     Minute hand will have to gain only 5 min. spaces.

     

    55 min. spaces are gained in 60 min.

     

    5 min. spaces are gained in[\(\frac {60 } { 55 } \)x5]min=5\(\frac {5 } {11 } \)min

     

     Required time =5\(\frac {5 } {11 } \)min.past 7.


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