Question 1191325: Travis moved his friends' ten cars from his house to a parking lot six hundred meters away. It took him three minutes to drive each car to the lot, then nine more minutes to walk back home. How many minutes did it take him to move all of the cars?
Answer value
Found 3 solutions by Boreal, ikleyn, greenestamps:
Answer by Boreal(15235)   (Show Source):
You can put this solution on YOUR website! It takes 12 minutes per car, 3 to drive, 9 to walk home.
After 11 cars, he has used 132 minutes.
it takes 3 more minutes to move the 12th, and that is 135 minutes, the answer.
he walks home afterwards.
Answer by ikleyn(53937)  (Show Source):
You can put this solution on YOUR website! .
Travis moved his friends' ten cars from his house to a parking lot six hundred meters away.
It took him three minutes to drive each car to the lot, then nine more minutes to walk back home.
How many minutes did it take him to move all of the cars?
Answer value
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Be aware: the numbers that @Boreal uses in his solution do not correspond to the given values in the problem.
Answer by greenestamps(13367)  (Show Source):
You can put this solution on YOUR website!
3+9=12 minutes per car; times 10 cars equals 120 minutes.
Or 120-9=111 minutes, if you consider he is "done" when the last car is delivered to the parking lot, instead of when he returns home after delivering the last car.
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