SOLUTION: a plane averaging 120mi/h and an express train averaging 60 mi/h depart at the same time from the same city headed for the same destination. if the train arrives 45 min later than

Question 1047729: a plane averaging 120mi/h and an express train averaging 60 mi/h depart at the same time from the same city headed for the same destination. if the train arrives 45 min later than the plane, how far did they both travel?
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
They both went the same distance, d.

SPEED TIME DISTANCE PLANE 120 t d TRAIN 60 t+3/4 d

System of Equations:

-

Answer by MathTherapy(10552) (Show Source): You can put this solution on YOUR website!

a plane averaging 120mi/h and an express train averaging 60 mi/h depart at the same time from the same city headed for the same destination. if the train arrives 45 min later than the plane, how far did they both travel?

Let distance be D
Then we get:

2D = D + 90 -------- Multiplying by LCD, 120
2D � D = 90
D, or distance =
See! Nothing to it....nothing COMPLEX!
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