Last night, Shirley worked on her accounting homework for one and one half hours. During that time, she completed 6 problems. What is the velocity in problems per hour?
A) 4 per hour
B) 0.67 per hour
C) 6 per hour
D) 10 per hour
E) 15 per hour

Question

Quizplus · Accepted Answer

Shirley completed 6 problems in 1.5 hours, so her velocity is 6 problems / 1.5 hours = 4 problems per hour.

Last Night, Shirley Worked on Her Accounting Homework for One