At what time between 2 and 3 'O clock, the hands of a clock will make an angle of 160o?
A
20 minutes past 2
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B
30 minutes past 2
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C
40 minutes past 2
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D
50 minutes past 2
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Solution
The correct option is C40 minutes past 2 In a minute, the hour hand moves by half degrees and the minute hand moves by six degrees. The angle at 2 o' clock between the two hands is 60 degrees. For them to make 160 degrees between, it should move m minutes 160=(6m−m2)−60 220=12m−m2 440=12m−m 11m=440 m=40 minutes
It should be 40 minutes past 2 for the two hands to be at 160 degrees. Answer is option C.