SOLUTION: An eastbound bus left concord at noon. three hours later a westbound bus left the same station. if the buses traveled at the same rate and were 500 kilometers apart at 6 p.m., find
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Question 386979: An eastbound bus left concord at noon. three hours later a westbound bus left the same station. if the buses traveled at the same rate and were 500 kilometers apart at 6 p.m., find the rate of each bus. Answer by ewatrrr(24785) (Show Source):
Hi
D = r*t
buses traveled at the 'same rate' in opposite directions
500 = r*6hr + r*3hr (0ne traveled 6hrs, the other 3hrs)
solving for r
500 = 9r
500/9 = r
55.56kmph = rate of each bus
CHECKING our Answer
6hr*55.56kmph + 3h*55.56kmph = 500km
