Aptitude - Clock - Discussion
Discussion Forum : Clock - General Questions (Q.No. 17)
17.
How many times do the hands of a clock coincide in a day?
Answer: Option
Explanation:
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.
Discussion:
11 comments Page 2 of 2.
Neha said:
9 years ago
HH and MH coincide between A and B when x = 60*(A/11), i.e they will meet at 'x' minutes past A.
In every hour, both the hands coincide, when they both start moving from the same position, after (360*2/11) = 65 5/11 minutes.
What is the difference between these two points I mentioned above?
In every hour, both the hands coincide, when they both start moving from the same position, after (360*2/11) = 65 5/11 minutes.
What is the difference between these two points I mentioned above?
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