Time, Speed & Distance
Aptitude

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Q.

Two trains starting at the same time from 2 stations 200 km apart and going in opposite direction cross each other at a distance of 110 km from one of the stations. What is the ratio of their speeds?

 A.

$11 : 9$

 B.

$7:3$

 C.

$18 : 4$

 D.

None of these

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Solution:
Option(A) is correct

In same time, they cover 110 km and 90 km respectively.

For the same time speed and distance is inversely proportional.

So ratio of their speed = $110:90$ = 11: 9


(3) Comment(s)


Ritaprava
 ()

Distance covered by a train must include its own length, as the trains crossed each other.



Akshay
 ()

please validate my undersatnding that speed and distance are direclt proportional so how the solution shows that it is inversly proportional



Abhishek
 ()

speed and distance is directly proportional for same time.