I think the hands of the clock coincide "exactly" only twice a day...coz for all other times there is a slight angle difference bw the hour n the minute hand..except at 12 wen the difference is 0 degrees...
The clock hands concide with each other 24 times. since we have 24 hrs in a day. after 1 o clock hands of the clock concide,after 2 o clock hands of the clock concide,after 3 o clock hands of the clock concide,.........similarly at 24th hr both hands concide.So this proves that the clock hands concide 24 times.
The clock will tick at 00:00 and then at between 1-2 between 2-3, 3-4, 4-5, 5-6, 6-7, 7-8, 8-9, 9-10, 10-11, 12 PM then 1-2, 2-3, 3-4, 4-5, 5-6, 6-7, 7-8, 8-9, 9-10, 10-11, and between 11 pm - 11:59 PM.The last time for the day would be : 23:59:59Now If you count these if will come to 23on 00:00 hours it would be the next day.Correct Answer is 23
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