SOLUTION: A train travels at a distances of 100 km and at a speed of 20 km/h. If it had gone two and a half times as fast, how much earlier would it have arrived at B?
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Question 935056: A train travels at a distances of 100 km and at a speed of 20 km/h. If it had gone two and a half times as fast, how much earlier would it have arrived at B?
You can put this solution on YOUR website! s = d/t
t = d/s
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original time:
t = 100/20
t = 5 hours
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at 2.5 times speed:
t = 100/(20*2.5)
t = 2 hours
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answer:
it would arrive 3 hours earlier
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