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Joe left the hospital at the same time as Eugene. They drove in opposite directions. Eugene drove at a speed of 70 km/h. After three hours they were 360 km apart. How fast did joe drive?

User Droussel
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If Joe and Eugene are travelling in opposite directions, their total distance is 360 km.

Eugene's speed = 70 km/hour

Let Joe's speed be = x

They each travel for 3 hours, so time = 3 hours

Distance = speed * time


360=70(3)+x(3)


360=210+3x


3x=150


x=50

Hence, Joe's speed is 50 km per hour.


User Lionel Rowe
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