The angle between the minute hand and hour hand of the clock when the time is 05:06 hours is
A
126∘
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B
120∘
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C
117∘
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Solution
The correct option is C117∘ To find: Angle between the minute hand and hour hand in a clock when the time is 05:06 hours.
The sittuation can be represented by a diagram as:
Here, the recquired angle =∠COA−∠BOA
For hour hand 1 Rotation =12 Hours
And for minute hand 1 Rotation =60 minutes ⇒ Time taken to go from 00:00 to 05:06 hours =5+0660=5110 hours.
Now, angle traced by hour hand in 12 hours =360∘ ⇒Angle traced by hour hand in 51/10 hours =5110×360∘12=153∘=∠AOC
Now, for minute hand 1 Rotation =60 minutes
Or angle traced by minute hand in 60 minutes =360∘ ⇒ Angle traced by minute hand in 06 minutes =360∘60×06=36∘=∠AOB ∴ Angle made by the minute hand and the hour hand when the time is 05:06 hours =∠AOC−∠AOB =153∘−36∘=117∘