Analog clock hour needle puzzle

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July 23, 2012Interview PuzzleNo comments

Question : In an analog clock for 25 minutes duration how much does the hour hand will move ?

??

????

……..

??????

 

Answer : 12.5  degree .

Explanation :

Analog clock is 360 degree. For 60 minutes the hour hand will move 30 degree. So for 30 minutes the hour hand will move 15 degree.

30 min = 15 degree

25 min = x degree

25/x = 30/15

x = 25 x (15/30)

x = 12.5 degree

Hence for 25 minutes the hour needle will move 12.5 degree.

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