Discussion :: Clock
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At 3:40, the hour hand and the minute hand of a clock form an angle of:
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Answer : Option C
Explanation :
Angle traced by hour hand in 12 hrs. = 360°.
Angle traced by it in\(\frac { 11 } { 3 } \)hrs=[\( \frac { 360 } { 12 }\)x\( \frac {1 1 } {3} ]^o\)= 110°
Angle traced by minute hand in 60 min. = 360°.
Angle traced by it in 40 min. =[\( \frac { 360 } { 12 }\)x\(40]^o\)= 240°
Required angle (240 - 110)° = 130°.
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