SOLUTION: It takes a small jet plane 4 hours less time than it takes a propeller driven plane to travel from Glen Rock to Oakville. The jet plane averages 637 km/h while the propeller plane

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Question 302548: It takes a small jet plane 4 hours less time than it takes a propeller driven plane to travel from Glen Rock to Oakville. The jet plane averages 637 km/h while the propeller plane averages 273 km/h. How far is it from Glen Rock to Oakville?
Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website!
It takes a small jet plane 4 hours less time than it takes a propeller driven
plane to travel from Glen Rock to Oakville.
The jet plane averages 637 km/h while the propeller plane averages 273 km/h.
How far is it from Glen Rock to Oakville?
:
Let d = distance between these two towns
:
Write a time equation, Time = dist/speed
:
Prop time = Jet time + 4 hrs
= + 4
Multiply by 173901(273*637) to clear the denominators, results:
637d = 273d + 4(173901)
:
637d - 273d = 695604
:
364d = 695604
d =
d = 1911 km between these two downs
;
:
Check solution by finding the times of each
1911/273 = 7 hrs
1911/637 = 3 hrs
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difference 4 hrs