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°
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 7 of 9.

Akshay said:   1 decade ago
10min past 5 is 5:10
so, 5+10/60 =5+1/6(cross multiply)=31/6

Nilesh said:   2 decades ago
I cant undrstand how that
31/6 hrs= (360/12 * 31/6) = 155

Navaneetha krishnan said:   1 decade ago
Sir i can't understand that 155 degree for which timing?

Kunwar said:   10 years ago
I'm confused.

1 min is 5.5 degree or 1 min is 6 degree.

Rahu said:   9 years ago
@Naveed Mohammad.

Thanks for providing those formulas.

Pradeep said:   2 decades ago
@nilesh
1hr=30 degree
.'. 31/6 hr= 31/6 * 30 =155 deg

Shiv said:   1 decade ago
@Shravan Sir your explanation is mind blowing.

Morpankh said:   5 years ago
For hour hand (HH), we have a notation. Right?

Goutam pramanik said:   1 decade ago
Angle = 60*h-11*m/2.

Where, h=hour, m=minute.

Charm said:   5 years ago
360/12*31/6=155.

How? Anyone please explain.


Post your comments here:

Your comments will be displayed after verification.