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  • At what time between 9 and 10 o'clock will the hands of a watch be together?

At what time between 9 and 10 o'clock will the hands of a watch be together?

Answers (2)

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At what time between 9 and 10 o'clock will the hands of a watch be together?

  • Option 1)

    45 min. past 9

  • Option 2)

    50 min. past 9

  • Option 3)

    49\frac{1}{11}    min. past 9

  • Option 4)

    48 min. past 9

  • Option 5)

    48\frac{2}{11}  min. past 9

Posted by

rishi.raj

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If the hands of the watch are together then they make 0 degree angle .

 

Here m represents minutes 

      h represents hours 

Angle = 11/2 (m) - 30 (h) 

      0 = 11/2 (m) - 30(9) 

       0 = 11/2 (m) - 120

      120 = 11/2 (m) 

     540/11 = m 

       m = 49 1/11

They can be together at 9h 49 1/11 m

Posted by

Virat

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