A driver took a trip consisting of three segments at three different speeds. The driver drove a distance of (3D) at a speed of (2V), then a distance of (7D) 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?
Select.
A) 3D/V  B) 4D/V  C) 5D/V  D) 6D/V  E) 7D/V
The total time of the trip was:   3D/2V + 7D/3V + D/6V =   18D/12V + 28D/12V + 2D/12V =   48D/12V = 4D/V   The answer is 4D/V.48 /12= 
<gadget id="calculator">48 /12</gadget>
<output>4</output>
4D/V   The answer is 4D/V.
<result>B</result>
A driver took a trip consisting of three segments at three different speeds. The driver drove a distance of (3D) at a speed of (2V), then a distance of (7D) 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?