Cole drove from home to work at an average speed of 70 kmh. He then returned home at an average speed of 105 kmh. If the round trip took a total of 2 hours, how many minutes did it take Cole to drive to work?  Choose the correct choice from the following options:
A) 66  B) 70  C) 72  D) 75  E) 78
Let the distance one way be x   Time from home to work = x/70   Time from work to home = x/105   Total time = 2 hrs   (x/70) + (x/105)= 2   Solving for x, we get x = 84   Time from home to work in minutes= (84)*60/70= 
<gadget id="calculator">(84)*60/70</gadget>
<output>72</output>
72 minutes   Ans= 72
<result>C</result>
Cole drove from home to work at an average speed of 70 kmh. He then returned home at an average speed of 105 kmh. If the round trip took a total of 2 hours, how many minutes did it take Cole to drive to work?