SOLUTION: a lab is testing two high-speed trains. One train travels 40 km/h faster than the other train. While one travels 70km, the other travels 60 km. Find their speeds.
Please brea
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Question 105914: a lab is testing two high-speed trains. One train travels 40 km/h faster than the other train. While one travels 70km, the other travels 60 km. Find their speeds.
Please break it down.. thanks
Answer by HyperBrain(694) (Show Source): You can put this solution on YOUR website!
Let x= speed of the slower train
____x+40=speed of the faster.
It took the same time for the faster one to reach 70 km and the slower one to attain 60km.
time for the slower=
time for the faster=
By cross multiplication,
Therefore, their soeeds are 200 and 240 km/hr!
Power up,
HyperBrain!
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