SOLUTION: A car left Town A at 10:00am and travelled towards Town B at the average speed of 70 km/h. At the same timee a truck left Town B and travelled towards Town A over the same road at
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Question 698521: A car left Town A at 10:00am and travelled towards Town B at the average speed of 70 km/h. At the same timee a truck left Town B and travelled towards Town A over the same road at an average speed of 50 km/h. If the distance between Town A and Town B is 420km, at what time would the car and the truck pass each other? Answer by lwsshak3(11628) (Show Source):
You can put this solution on YOUR website! A car left Town A at 10:00am and travelled towards Town B at the average speed of 70 km/h. At the same timee a truck left Town B and travelled towards Town A over the same road at an average speed of 50 km/h. If the distance between Town A and Town B is 420km, at what time would the car and the truck pass each other?
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let x=distance car traveled
420-x=distance truck traveled
travel time=distance/speed (same for car and truck)
..
x/70=(420-x)/50
50x=70(420-x)
50x=29400-70x
120x=29400
x=245
travel time=x/70=3.5 hrs
time car and truck pass each other: 1:30 pm
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