Aptitude - Clock - Discussion
Discussion Forum : Clock - General Questions (Q.No. 3)
3.
A clock is started at noon. By 10 minutes past 5, the hour hand has turned through:
Answer: Option
Explanation:
Angle traced by hour hand in 12 hrs = 360°.
| Angle traced by hour hand in 5 hrs 10 min. i.e., | 31 | hrs = |  |
360 | x | 31 |  |
° | = 155°. |
| 6 | 12 | 6 |
Discussion:
89 comments Page 8 of 9.
Rahu said:
10 years ago
@Naveed Mohammad.
Thanks for providing those formulas.
Thanks for providing those formulas.
Naveen said:
10 years ago
Angle between hands: 1/2(60H - 11M).
H : Hour.
M: Minutes.
Angle for the Minute hand : 6M.
Angle for the hour hand: 1/2(60H+M).
Reflex angle : 360- Angle.
So for this queestion:
Angle = 1/2(60(5) + (10)).
= 1/2 (310).
= 155.
H : Hour.
M: Minutes.
Angle for the Minute hand : 6M.
Angle for the hour hand: 1/2(60H+M).
Reflex angle : 360- Angle.
So for this queestion:
Angle = 1/2(60(5) + (10)).
= 1/2 (310).
= 155.
Ssrgsssdf said:
10 years ago
Why do we take it as 31/6 hours?
Meena said:
1 decade ago
Why do we take it as 31/6 hrs?
Parul saxena said:
1 decade ago
In the previous question separate degree was calculated for minute hand. Then why in this question separate degree are not calculated for minute hand?
Kunwar said:
1 decade ago
I'm confused.
1 min is 5.5 degree or 1 min is 6 degree.
1 min is 5.5 degree or 1 min is 6 degree.
TAPAN TIMANI said:
1 decade ago
How to calculate 5.10 to 31/6 please tell me?
Mohd faisal said:
1 decade ago
Formula = (Section-Difference) multiply by 30 +or- minute/2.
According to Formula time = 5:10.
(10-5) multiply 30+10/2.
= 5*30+5 = 150+5.
155 is answer.
According to Formula time = 5:10.
(10-5) multiply 30+10/2.
= 5*30+5 = 150+5.
155 is answer.
Hemanth reddy said:
1 decade ago
5 hrs 10 min's (given) > 1 hr = 30 degrees > 5 hrs = 150 degrees.
60 min = 30 degrees > 1 min = 0.5 degrees > 10 min = 5 degrees 5 hrs 10 min = 150+5 = 155.
60 min = 30 degrees > 1 min = 0.5 degrees > 10 min = 5 degrees 5 hrs 10 min = 150+5 = 155.
Soundarya said:
10 years ago
5 min past 10.
Number of hours = 5.
Degrees rotated in 1 hour or 60= 30deg.
Degrees rotated in 5 hours = 150deg.
Degree rotated in 10 min = (30/6) =5.
Degrees rotated in 10 min past 5 = 155deg.
Number of hours = 5.
Degrees rotated in 1 hour or 60= 30deg.
Degrees rotated in 5 hours = 150deg.
Degree rotated in 10 min = (30/6) =5.
Degrees rotated in 10 min past 5 = 155deg.
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