Question

An express train travels 90 kilometers per hour from smallville to megatown. a local train takes 2.5 hours longer to travel the same distance at 50 kilometers per hour. how far apart are smallville and megatown?

Answer 1

Let h be the time it takes both trains to reach megatown. Then:
90h=50h+2.5(50)
40h=125
h=125/40 or 3.125h
90(3.125)=281.25 km
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