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Question

How many times in a day, the two hands of a clock coincide?

A
11
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B
12
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C
22
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D
24
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Solution

The correct option is D 22
The hands of a clock coincide 11 times in every 12 hours (Since between 11 and 1, they coincide only once, i.e., at 12 o'clock).
AM
12:00,1:05,2:11,3:16,4:22,5:27,6:33,7:38,8:44,9:49,10:55
PM
12:00,1:05,2:11,3:16,4:22,5:27,6:33,7:38,8:44,9:49,10:55
The hands overlap about every 65 minutes, not every 60 minutes.
The hands coincide 22 times in a day.

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