Q.

Where will the hand of a clock stop if it starts at 12 and makes Question Image revolution clockwise?


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a

4

b

5

c

6

d

7 

answer is C.

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Detailed Solution

Concept- If a clock starts at 12 and makes half a revolution, the hand will have traveled Question Imageclockwise. A clock is in the shape of a circle and has an overall 1 revolution, which is Question Image. To determine the position of the hand, use this idea.
Question ImageThe minute hand is initially at 12 on the picture of the clock above it (shown by the red dotted line).
The clock hand will rotate by Question Image revolutions, as we are all aware.
A clock hand moves by half (1/2) a revolution as a result Question ImageNow, assuming that the clock hand starts off at 12 as indicated by the red dotted line in the image, it rotates by Question Image as indicated by the figure after making a half-revolution clockwise. As can be seen in the illustration, the minute hand of the clock is now in its final position at 6. Thus, the clock's hand comes to a standstill at 6.
Hence,the correct option is 3.
 
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