At 3.40, the hour hand and the minute hand of a clock form an angle of:
Angle traced by hour hand in 12 hrs. = 360º.
Angle traced by it in 113hrs =36012×1130= 1100
Angle traced by minute hand in 60 min. = 3600
Angle traced by it in 40 min = 36060×400= 2400
Required angle (240 - 110)º = 1300
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