A train covers the first half of the distance between two

Last updated: 6/12/2023

A train covers the first half of the distance between two stations at a speed of 40 km h and the other half at 60 km h Then its average speed is A 50 km h B 48 km h C 52 km h D 100 km h A bird moves from point 1 2 m to 4 2 m along straight line If the speed of the bird is 20 m s then the