Question 1124835
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Let x be the speed of the car; then 5x is the speed of the jet.<br>
time = distance divided by speed:
time in jet = 2000/5x
time in car = 500/x<br>
The time in the car is 1 hour more than the time in the jet:
500/x = 2000/5x+1
500/x = 400/x+1
100/x = 1
x = 100<br>
The speed of the car is x = 100mph; the speed of the jet is 5x = 500mph.<br>
The time in the car is 500/100 = 5 hours; the time in the jet is 2000/500 = 4 hours.