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.
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°.
Abina said:
1 decade ago
It is very simple, the question is 5hrs and 10 mns. They are asking short hand. So,
In short hand 1 min = 1/2 degree.
1 hr = 60min/2 = 30.
5hr = 5*30 = 150.
1 min = 10/2 = 5.
= 150+5 = 155 degree.
Answer : 155 degree.
In short hand 1 min = 1/2 degree.
1 hr = 60min/2 = 30.
5hr = 5*30 = 150.
1 min = 10/2 = 5.
= 150+5 = 155 degree.
Answer : 155 degree.
Santthosh said:
1 decade ago
I accept all of your comments, but what my doubt is if minute hand makes 5 ticks of 6 degree to contribute 5 minutes, then hour hand is making 6 ticks of 5 degree to contribute 1 hour. Why this variations in the ticks?
Kailash patria said:
7 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.
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.
Jatinder said:
1 decade ago
In 1 min hour hand = 1/2 degree /min.
For 10 min = 10*(1/2) = 5 degree.
In 1 hr hour hand takes 30 degree.
For 5 hr = 5*30 = 150.
And total angle traveled by hr hand = 150+5 = 155 degree.
For 10 min = 10*(1/2) = 5 degree.
In 1 hr hour hand takes 30 degree.
For 5 hr = 5*30 = 150.
And total angle traveled by hr hand = 150+5 = 155 degree.
Resham said:
1 decade ago
Initially both hands are at 12(noon)
1 hr= 30 dgrs ( 12 to 5 = 5 hrs)
so 5*30 = 150 dgrs and
in 60 mins cover 30 dgrs
in 10 mins= 30/60
in 1 min= 30/60*10= 5 dgrs
so
150 + 5 = 155 dgrs
1 hr= 30 dgrs ( 12 to 5 = 5 hrs)
so 5*30 = 150 dgrs and
in 60 mins cover 30 dgrs
in 10 mins= 30/60
in 1 min= 30/60*10= 5 dgrs
so
150 + 5 = 155 dgrs
Gyanendra said:
1 decade ago
I agree with @Riyaz.
The simplest way:
i.e 1 min space = 6 degree.
And in 1min hr hand travel 1/2 degree.
5*5*6 = 150 degree.
10*(1/2)degree = 5 degree.
Total = 155 degree.
The simplest way:
i.e 1 min space = 6 degree.
And in 1min hr hand travel 1/2 degree.
5*5*6 = 150 degree.
10*(1/2)degree = 5 degree.
Total = 155 degree.
Sasidhar said:
1 decade ago
Here angle In 12h is = 360 degree
angle in 10 PAST 5 means 5:10
h=5, m=10
Now
|30h-11/2m|= degree
|30*5-11/2*10| = 95 degree
Now degree=360-95=155 degree. Got it friends?
angle in 10 PAST 5 means 5:10
h=5, m=10
Now
|30h-11/2m|= degree
|30*5-11/2*10| = 95 degree
Now degree=360-95=155 degree. Got it friends?
Bhimnadh ravi said:
8 years ago
There are 5 hours between 12 to 5.
We know that 1hr =30 degree,
So 5*30=150degree,
We have 10 min.
So 1min= 1/2 degree,
10min= 10/2 = 5 degree,
By adding 5+150= 155 degree.
We know that 1hr =30 degree,
So 5*30=150degree,
We have 10 min.
So 1min= 1/2 degree,
10min= 10/2 = 5 degree,
By adding 5+150= 155 degree.
(1)
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers