how many times in a day the hands of a clock are straight line but opposite in direction - Wikitechy https://www.wikitechy.com/interview-questions/tag/how-many-times-in-a-day-the-hands-of-a-clock-are-straight-line-but-opposite-in-direction/ Interview Questions Mon, 13 Sep 2021 09:50:58 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://www.wikitechy.com/interview-questions/wp-content/uploads/2025/10/cropped-wikitechy-icon-32x32.png how many times in a day the hands of a clock are straight line but opposite in direction - Wikitechy https://www.wikitechy.com/interview-questions/tag/how-many-times-in-a-day-the-hands-of-a-clock-are-straight-line-but-opposite-in-direction/ 32 32 How many times do the hands of a clock coincide in 5 hours ? https://www.wikitechy.com/interview-questions/clock/how-many-times-do-the-hands-of-a-clock-coincide-in-5-hours/ https://www.wikitechy.com/interview-questions/clock/how-many-times-do-the-hands-of-a-clock-coincide-in-5-hours/#respond Tue, 17 Aug 2021 08:13:11 +0000 https://www.wikitechy.com/interview-questions/?p=1701

How many times do the hands of a clock coincide in 5 hours ?

A. 5

B. 4

C. 6

D. 3

Answer : B. 4

Explanation:

Hour hand and minute hand coincide every 65:5 minute, so in 5 hour they will coincide 4 times The hour hand covers 2*360 degrees in 24 hours, i.e 1440 minutes. So, in one minute, it covers 1440/720 = 1/2 degree.

Difference in angular distance travelled by the minute hand and the hour hand in one minute is thus 6-1/2 = 11/2 degrees. So, on a full rotation (360ᵒ), any similar event between them will be repeated every 360/(11/2) = 65 5/11 minutes.

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