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:
88 comments Page 4 of 9.
Akhila t s said:
7 years ago
31/6 means the time is 5:10.
5 * 10/60 = 31/6,
1hr-30 minutes then,
31/6 * 30 = 155°
5 * 10/60 = 31/6,
1hr-30 minutes then,
31/6 * 30 = 155°
Veeeateja said:
8 years ago
1 hour it takes 30 degree, 5:10, 5*30=150, 1 miniute =1/2.
10 miniutes =5, total =150=5=150.
10 miniutes =5, total =150=5=150.
Renoop said:
8 years ago
(30*hr+11/2*min)-360.
(30*5+11/2*10)-360=155.
(30*5+11/2*10)-360=155.
Anil said:
8 years ago
5 hours + 10 minutes.
5*30°+ 10*0.5° {Angle made by hour hand in 1 hour =30°, the angle made by hour hand in 1 min=0.5°}
150°+5°
155°.
5*30°+ 10*0.5° {Angle made by hour hand in 1 hour =30°, the angle made by hour hand in 1 min=0.5°}
150°+5°
155°.
Kailash patria said:
8 years ago
Hour hand completed 150 (90+60) upto 5 o'clock.
Now, for more 10 minutes past hour hand will move 5° (30° in 60 minutes multiplied by 10 (i.e. 1/2 degree per minute).
Hence total movement 150+5=155.
Now, for more 10 minutes past hour hand will move 5° (30° in 60 minutes multiplied by 10 (i.e. 1/2 degree per minute).
Hence total movement 150+5=155.
Phaneendra said:
7 years ago
10 min past to 5 means time is 4:50.
Ravikiran said:
7 years ago
1hr=30degrees.
Therefore 5hr and 10min=5*30=150=X.
=10min=5degree=Y,
Z=X+Y,
Z=150+5,
Z=155 degree.
Therefore 5hr and 10min=5*30=150=X.
=10min=5degree=Y,
Z=X+Y,
Z=150+5,
Z=155 degree.
Ajay kumar aluvala said:
9 years ago
5:10 = 5+(10/60) = 5+1/6 = 31/6 hrs.
1 hr = 30 degrees,
31/6 hrs = 31/6 * 30 = 155 degrees.
1 hr = 30 degrees,
31/6 hrs = 31/6 * 30 = 155 degrees.
Aisha Raja said:
6 years ago
@Thongoc992.
It says at the START of noon which is 12 o'clock.
It says at the START of noon which is 12 o'clock.
Sabungar said:
6 years ago
The clock is started noon matlab 12 o clock.
15 min =90 degree,
1 hr =360 degree,
Clock is start 12 o clock to 5 o clock .
Min hand is 10.
10*0.5=5
=> 5 and 6 gap between the 30 degrees.
So,30 -5 =25
And180-25=155°.
15 min =90 degree,
1 hr =360 degree,
Clock is start 12 o clock to 5 o clock .
Min hand is 10.
10*0.5=5
=> 5 and 6 gap between the 30 degrees.
So,30 -5 =25
And180-25=155°.
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