deepakvasireddy deepakvasireddy

24-11-2020
Mathematics

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two trains are 500 miles apart when they first enter a colision course. If after, two hours the distance between them is 300 miles and one train goes 20 mph faster than the other, find the speed of the faster train

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eclipsecat2x eclipsecat2x

24-11-2020

Answer: 60mph

Step-by-step explanation:

500-300 = 200

200 = distance traveled in 2 hrs

100 = distance traveled every hour

100=2x+20, x being the slower train

80=2x

x=40

40+20 = 60, the speed of the faster train

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