When will second truck catch up to first truck
At 9:00 a.m. the truck leaves truck yard and travels west at the rate of 50 mi/hr. 2 hours later, second truck leaves along same route, travelling at 75 mi/hr. When will second truck catch up to first?
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Running at same speed in direction opposite to sidewalk's movement, child is able to cover 165 meters in three minutes. Determine child's running speed on the still sidewalk, and find speed of moving sidewalk?
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