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17 Nov 2020, 09:15
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A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
74% (01:22) correct
26%
(01:03)
wrong
based on 43
sessions
History
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Time
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The number of degrees through which the hour hand of a clock moves in 2 hours and 12 minutes is:
(A) 66
(B) 72
(C) 126
(D) 732
(E) 792
(A) 66
(B) 72
(C) 126
(D) 732
(E) 792
17 Nov 2020, 09:30
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Explanation:
1 hour is 30 degrees i.e (360/12 = 30)
2 hour will be 60 degrees
12 mins is 1/5th of hour = 30/5 = 6 degrees
Total = 60 + 6 = 66 degrees
IMO-A
1 hour is 30 degrees i.e (360/12 = 30)
2 hour will be 60 degrees
12 mins is 1/5th of hour = 30/5 = 6 degrees
Total = 60 + 6 = 66 degrees
IMO-A
Archit3110
Major Poster
17 Nov 2020, 10:22
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Bunuel
total clock movement
1/2 * min + 30 * hours
1/2 * 12 + 30 * 2 = 66
option A
