How many times do the hands of a clock coincide in a day?  Choices
A) 20	B) 21	C) 22	D) 23	E) 24
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.   Answer: Option 22
<result>C</result>
How many times do the hands of a clock coincide in a day?