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 9 of 9.

Nitin harjai said:   1 decade ago
I don't understand "by 10min past 5".

Mariah said:   1 decade ago
What is the formula of changing minutes or hours to degrees?

Sandhya said:   2 decades ago
5.10/60
=5.2/12
=5.1/6
=5*6+1/6
=31/6

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

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

Pradeep Gorai said:   2 decades ago
To Uma
5 hr 1o min=310min(5*60+10)
=310/60 hr
=31/6 hr.
or
5 hr 10 min=5+10/60
=31/6

Uma said:   2 decades ago
I can't understand how that 31/6 come?
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