Schlumberger Interview Question: On a clock, what is the diffe... | Glassdoor

Interview Question

Field Specialist Interview(Student Candidate) Tulsa, OK

On a clock, what is the difference in the angle of the

minute hand and the hour hand when the clock shows 3:15.

1

You can answer this question a number of ways with trig. But the simplest way is to think about it. a Circle (clock) is 360 degrees. A clock as 60 mniutes on it.

360/60=6 degrees per minute

If the clock reads 3:15, that means the hour hand is on the 3, and the minute hand is 1 minute past the 3. Therefore the answer is:

6 degrees

Interview Candidate on Mar 11, 2014
1

The minute hand is front of the hour hand.

Dang Dinh Tan on Mar 26, 2014
0

Manuel on Mar 31, 2014
13

If a clock reads 3:15, then the minute hand is on the "3" (at zero degrees given a standard unit circle configuration). The hour hand is a little ways past the 3, a quarter of the way to the 4. There are 360/12= 30 degrees in each hour section. Since the hour hand has advanced a quarter of the way through the 3-4 hour section, 30/4= 7.5 degrees. So the hour hand is at -7.5 degrees and the minute hand at 0 degrees. There is a 7.5 degree difference.

Jason on Mar 31, 2014
0

6 degrees

Lee on Feb 14, 2015