23.
|
At 3.40, the hour hand and the minute hand of a clock form an angle of:
|
A.
|
120º
|
B.
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125º
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C.
|
130º
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D.
|
135º
|
|
Answer: Option C
Explanation:
Angle traced by hour hand in 12 hrs. = 360º.
Angle traced by it in
|
11
|
hrs =
|
|
360
|
x
|
11
|
|
º
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= 110º.
|
3
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12
|
3
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Angle traced by minute hand in 60 min. = 360º.
Angle traced by it in 40 min. =
|
|
360
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x 40
|
|
º
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= 240º.
|
60
|
Required angle (240 - 110)º = 130º.
