What is the speed of the train? I. Length of the train is 100 meters II. The train passes the other stationary train whose length is 150 meters in 5 seconds. III. This train crosses another train coming in opposite direction in 10 seconds.

Statement I provides the train length of 100 meters, and statement II provides a stationary train length of 150 meters along with a crossing time of 5 seconds. Using the formula speed equals distance divided by time, the total distance is 100 plus 150, which is 250 meters. Dividing 250 meters by 5 seconds gives a speed of 50 meters per second, meaning only statements I and II are necessary. The result is 3.

• Thanks
• Wrong explanation