SOLUTION: Two trains start at the same time from two stations and proceed towards each other with speed 40km/hr and 45km/hr respectively. When they meet it is found that one train has travel
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Question 883516: Two trains start at the same time from two stations and proceed towards each other with speed 40km/hr and 45km/hr respectively. When they meet it is found that one train has travelled 40km more than the other. Find the distance between the two stations.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let km = the distance that the
km/hr train travels
km = the distance the
km/hr train travels
---------------------------------------
Let = the time in hrs for them to meet
Equation for km/hr train:
(1)
Equation for km/hr train:
(2)
-------------------------
By substitution:
(2)
(2)
(2)
and
(1)
(1)
(1)
and
-----------------------
The stations are 680 km apart
-------------------------------
check answer:
I can think of one train standing still and
the other traveling at the sum of their speeds
for the whole km for hrs
OK
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