SOLUTION: The speed of train A is 8mph slower than the speed of train B. Train A travels 230 miles in the same time it takes train B to travel 270 miles. Find the speed of both trains. T

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Question 328438: The speed of train A is 8mph slower than the speed of train B. Train A travels 230 miles in the same time it takes train B to travel 270 miles. Find the speed of both trains.
Thank you

Found 2 solutions by checkley77, josmiceli:
Answer by checkley77(12844)   (Show Source): You can put this solution on YOUR website!
D=RT
TRAIN A: 230=(R-8)T
T=230/(5-8)
TRAIN B: 270=RT
T=270/R
230/(R-8)=270/R CROSS MULTIPLY.
270(R-8)=230R
270R-2,160=230R
270R-230R=2,160
40R=2,160
R=2,160/40
54 MPH FOR TRAIN B.
PROOF:
230/(54-8)=270/54
230/46=270/54
5=5

Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!
You need 2 equations:


and


You are given that , so

Multiply both sides by




and, since



The speed of train A is 46 mi/hr
The speed of train B is 54 mi/hr
check answers:



hrs
and



hrs

OK

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