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A train can travel 80 kilometers per hour. How many hours and minutes does it take for this train to travel 50 kilometers?
It takes one hour (60 minutes) to walk 80 kilometers. If you draw it, it is equivalent to walking 4 kilometers in 3 minutes. If you walk 4 kilometers in 3 minutes, divide 50 by 4 kilometers and multiply 3 minutes, you will be OK. The answer is 37.5 minutes. If you don't believe it, you can take 7.5 out and see that 30 minutes is 40 kilometers. Then 7.5 must be 10 kilometers, and 7.5 times 4 by 3 is 10 kilometers!
The speed of a car is one sixth slower than that of a train. The average speed of a train is 84 kilometers per hour. How many kilometers does a car travel per hour?
The average vehicle distance is 70km
A train travels 80 kilometers per hour, seven eighths slower than an airplane. How many kilometers does an airplane travel per hour? (solution of the equation)
Set the plane to travel x kilometers per hour
（1-7/8）X=80
1/8X=80
X=80÷1/8
X=640
A: the plane travels 640 kilometers per hour
Hope to help you!
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