Question 334888: A man is pedaling his bike across a narrow bridge when he hears a train approaching from behind at 60 mph. if he is 3/8 of the way across the bridge and able to just reach either end of the bridge at the same time as the train, how fast can he pedal his bike?
Answer by ankor@dixie-net.com(22740)   (Show Source):
You can put this solution on YOUR website! A man is pedaling his bike across a narrow bridge when he hears a train approaching from behind at 60 mph. if he is 3/8 of the way across the bridge and able to just reach either end of the bridge at the same time as the train, how fast can he pedal his bike?
:
Looking at the situation, we can see that the train will enter the bridge when
the man travels 3/8 of the distance from the point that is already 3/8 from the
end, he will then be 6/8 (3/4) from the train as it enters the bridge.
He will have to travel 1/4 while the train travels the whole distance
therefore bike will have to go 1/4(60) = 15 mph
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