Question 138

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

Solution

Distance between two trains = 200 km

Since one of the trains covered 110 km

=> Other train covered = 200 - 110 = 90 km

Also, $$speed \propto distance$$

$$\therefore$$ Ratio of speed = $$\frac{110}{90}$$

= 11 : 9

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