Cole drove from home to work at an average speed of 60 kmh. He then returned home at an average speed of 100 kmh. If the round trip took a total of 2 hours, how many minutes did it take Cole to drive to work? Choose the most appropriate option:
A) 66
B) 70
C) 72
D) 75
E) 78
Let the distance one way be x   Time from home to work = x/60   Time from work to home = x/100   Total time = 2 hrs   (x/60) + (x/100)= 2   Solving for x, we get x = 75   Time from home to work in minutes= (75)*60/60= 
<gadget id="calculator">(75)*60/60</gadget>
<output>75</output>
75 minutes   Ans= 75
<result>D</result>
Cole drove from home to work at an average speed of 60 kmh. He then returned home at an average speed of 100 kmh. If the round trip took a total of 2 hours, how many minutes did it take Cole to drive to work?