What is the angle between the two hands of a clock when the time shown by the clock is 8 p.m.?(in degrees)
The total angle in a clock is 360°.
The minute hand covers this 360° in 60 minutes. Thus ,for every minute it covers 6°.
The hour hand covers this 360° in 12 hour. Thus ,for every hour it covers 30°.
So, in 8 hour ,the hour hand will cover $$8\times30°=240°.$$
So, the difference between hour hand and minute hand at 8 p.m will be = $$\left(360°-240°\right)=120°.$$
So, option B is correct .
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