Aptitude - Clock - Discussion

Discussion Forum : Clock - General Questions (Q.No. 1)
1.
An accurate clock shows 8 o'clock in the morning. Through how may degrees will the hour hand rotate when the clock shows 2 o'clock in the afternoon?
144°
150°
168°
180°
Answer: Option
Explanation:

Angle traced by the hour hand in 6 hours = 360 x 6 ° = 180°.
12

Discussion:
95 comments Page 6 of 10.

Sandeep said:   9 years ago
In 8-2 clock.

The difference between clock 8-2 is = 6hours.

So, 6H = 6 * 30 = 180.
Here 1 H = 30 degrees.

Naveen.T said:   9 years ago
Good solution.

Ranveer singh said:   9 years ago
Formula- 30H - 11/2 M.

Here hours (H) given 6 and minutes (M) 0
So, 30 * 6 - 11/ 2 * 0.
30 * 6 = 180.
All these type problems solved by this formula.

Fahim Mohammed said:   9 years ago
According to the problem, 1hour = 60'.
Then 6 hours = 360', hence 360'/12 hours = 30'.

The difference between 2 0'clock and 8 0' clock is 6 hours.
Therefore the solution is 30' * 6 hours = 180 degrees.

Saravana said:   9 years ago
Thanks for all your explanation.

Ananya said:   9 years ago
Thanks for your explanation @Rishi.

Alekhya said:   9 years ago
Gus total clock degree = 360.
The distance between 2 to 8 = 6,
Total hours in a day = 24,
Remaining hours without six hours is 12 (12+6 = 24).
So 360/12 * 6 = 180.

Dinu said:   9 years ago
Thanks for all the explanation of the answer.

Mahesh Thota said:   9 years ago
One hour = 30°
=8 * 30 = 240,
=2 * 30= 60,
= 240-60 = 180°.

Sambhav said:   9 years ago
Since one-quarter of clock to another quarter of the clock is 90°, the time of 10 to 12 is sorted. Remaining is 8 to 9 and 12 to 2.
8 to 9=> one third of angle covered by quarter(90÷3)= 30.
12 to 2 => since one third is 30°, two thirds will be 30*2= 60°.
Total angle =90 + 30 + 60 = 180°.


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