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:
87 comments Page 3 of 9.
Sowmya said:
9 years ago
12pm to 5pm = 5hrs.
1hr = 30°.
Therefore, 5 * 30 = 150°.
Tilting time = 10min.
1 min = 1/2°.
Therefore, 10/2 = 5°.
Ans = 150° + 5° = 155°.
1hr = 30°.
Therefore, 5 * 30 = 150°.
Tilting time = 10min.
1 min = 1/2°.
Therefore, 10/2 = 5°.
Ans = 150° + 5° = 155°.
Soundarya said:
9 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.
Shreya raut said:
9 years ago
1 hr = 30° and 1 min = (1/2)°,
So , 5 hrs = 150 min and 10 min = 5°,
Thus 150 + 5 = 155°.
So , 5 hrs = 150 min and 10 min = 5°,
Thus 150 + 5 = 155°.
Bhadra said:
9 years ago
Thanks for your explanation @Shreya Raut.
Mehak said:
9 years ago
How 31/6?
Still can't understand.
Still can't understand.
Mohan said:
9 years ago
How 31/6 will come? Please explain me.
Vinoth said:
9 years ago
Best explanation, thanks @Shreya Raut.
Mayukumarswamy said:
8 years ago
@ALL.
I AM NEW TO THIS COMMUNITY,
NOW I WANT TO SHARE ABOUT CLOCK,
BEFORE GOING TO ATTEMPT ANY CLOCK PROBLEMS,
1.HOUR'S HAND TAKES.
=============HOURS HAND/ SHORT HAND=============
Time to finish one cycle = 360's.
i.e in 12hrs of time =360 degrees.
Within 1 hour of time = 360/12 =30 degrees.
Which means 60 mins = 30 degrees.
In one minute = 1/2 degree (half degree).
=============MINUTES HAND/ LONG HAND=============
Within 1 hour of time =360 degrees.
Which means 60 mins = 360 degrees.
In one minute = 360/60 = 6 degrees.
I think this stuff will help to solve any clock problem.
I AM NEW TO THIS COMMUNITY,
NOW I WANT TO SHARE ABOUT CLOCK,
BEFORE GOING TO ATTEMPT ANY CLOCK PROBLEMS,
1.HOUR'S HAND TAKES.
=============HOURS HAND/ SHORT HAND=============
Time to finish one cycle = 360's.
i.e in 12hrs of time =360 degrees.
Within 1 hour of time = 360/12 =30 degrees.
Which means 60 mins = 30 degrees.
In one minute = 1/2 degree (half degree).
=============MINUTES HAND/ LONG HAND=============
Within 1 hour of time =360 degrees.
Which means 60 mins = 360 degrees.
In one minute = 360/60 = 6 degrees.
I think this stuff will help to solve any clock problem.
Tejas said:
8 years ago
Why we multiple it by 31/6?
Rahu said:
9 years ago
@Naveed Mohammad.
Thanks for providing those formulas.
Thanks for providing those formulas.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers