A driver took a trip consisting of three segments at three different speeds. The driver drove a distance of (5D) at a speed of (2V), then a distance of (10D) at a speed of (3V), then a distance of D at a speed of (6V). In terms of D and V, what was the total time of the trip? Pick one: A) 3D/V B) 4D/V C) 5D/V D) 6D/V E) 7D/V
The total time of the trip was:   56D/V/2V + 106D/V/3V + 6D/V/6V =   306D/V/12V + 406D/V/12V + 26D/V/12V =   726D/V/12V = 66D/V/V   The answer is 6D/V.
<result>D</result>
A driver took a trip consisting of three segments at three different speeds. The driver drove a distance of (5D) at a speed of (2V), then a distance of (10D) at a speed of (3V), then a distance of D at a speed of (6V). In terms of D and V, what was the total time of the trip?