# 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:
145°
150°
155°
160°
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:
86 comments Page 1 of 9.

Aspire Study said:   2 years ago
Time: 5:10PM.
Standard time 12:00PM.

Angel traced by hours 12 hr =360°
1 hr = 360°/12 = 30°
60 minutes=30°
One minutes = 1/2°
12 PM to 5 PM there are 5 hr so 5*30°=150°
For 10 minutes 1/2*10 =5°
Total Degree= 155°
(159)

Vikram kumar said:   2 years ago
5 minute = 30°
1 hour=30°

So,
Angle traced by 5 h 10 min =31/6 * 30=155°.
(21)

Yashodeep said:   2 years ago
The clock starts at noon till 5:10.
Hour hand has travelled 5 hours,
Therefore 5*30=150.

In the Remaining 10 min hours, the hand must have travelled some more distance.
Therefore 10min= 10/60 (converting it into hours)=1/6,
Now 1/6*30 ( because hour hand makes 30° angle in every hour)=5°
(23)

Amar naik said:   2 years ago
5hrs10mit.

60mit =30°.
5°+5°+5°+5°+5°+5°/10mit.
5hrs*30° =150°.
10mit/5°.
150° +5°= 155°
(5)

Shreya said:   2 years ago
in this same ques if we've asked to take out the angle made by min hand then what will it be?
(4)

T subhadra said:   3 years ago
I think the right answer is 95.

c = 3 * 30 + 5 = 90 + 5= 95.
(18)

Ram Ghalley said:   3 years ago
5 :10
12hours =360°.
1 hour = 360/12
=30°.
5 hours= 5*30
=150°.

1 hour= 60mins
1 min =1/60 hour.
10 mins= 10*1/60.
= 1/6 hour.
= 30° * 1/6.
=5°.
Total angle moved by hour hand = 150° + 5°.
= 155°.
(11)

Anjana said:   3 years ago
12-5.10 = 5hr 10min
1hr=30 °.

5hr = 5 * 30=150
1min =1/2 °.

10min =10 * 1/2=5.
Ans) 150 + 5=155°.
(7)

Morpankh said:   3 years ago
For hour hand(HH),we have a notation i.e., 360/12 and for min hand (MH) it's 360/60.
360/12=30° ---> 1.

Now,as given in the problem..
10 past 5 i.e, it's 5:00 and extra 10 min completed overall...
So, it's 5:00+00:10=5:10.
It's also written as..5+(10/60).
5+(1/6)..= 31/6---> 2eq.

Finally ,from 1eq & 2eq..
30° * 31/6 = 155°
(4)

Morpankh said:   3 years ago
For hour hand (HH), we have a notation. Right?