Questions : 25

Topic Name :Trains (We know that 1 kilometer = 1000 meters and 1 hour = 3600 seconds. Now, 1 km/h can also be written as 1000/3600. So, this is the conversion factor which is used to convert km/h to m/s. On simplifying 1000/3600 further, we get 5/18, which can also be used to convert this speed. That's why 5/18 use in examples on trains)

Time : 1Hr.

Makrs : 25