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### Discussion :: Clock

1. The angle between the minute hand and the hour hand of a clock when the time is 8.30, is:

2.  A. 80° B. 75° C. 60° D. 105°

Explanation :

Angle traced by hour hand in$$\frac { 17 } { 2 }$$hrs=[$$\frac { 360 } { 12 }$$x$$\frac { 17 } { 2 }]^0$$= 255°

Angle traced by min. hand in 30 min. =[$$\frac { 360 } { 60}$$x$$30]^o$$== 180°.

Required angle = (255 - 180)° = 75°.

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