Question

Two trains has started from two station located 500km apart in the direction of each other if the speed of one train is 60 km/h and another train is 40km/h then after how much time both train will cross each other.
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Answer 1

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Answer 2

Answer:

Given Train starts at the same time.

Hence,  Time remains constant.

Speed of Train 'T1'  be  'S1' = 40 km\hr

Speed of Train 'T2'  be  'S2' = 45 km\hr

Let X be the distance at which trains meet.

Train T2 travels X+40 km more than Train T1

According to the formula.

Speed=  

Time

Distance

​  

 

Time=  

45

X+40

​  

 

Time=  

40

X

​  

 

From above two equations.

40

X

​  

=  

45

X+40

​  

 

45×X=40×X+40×40

5×X=1600

=320 km

Distance between two Stations = Distance at which train T1 meet + Distance at which Train T2 meet + Distance train T2 travels

                                                   = 320+320+40

                                                   = 680