Question

to ten trains running at the speed of 45 kilometre per hour and 45 km per hour respectively leave at the same time in opposite direction find the distance between them after 4 hours and 30 minutes

Answer 1

as both trains are running at the same speed in opposite direction the distance b/w them will be twice the distance travelled by one of them in 4.5 hours ie. = 2× 45×4.5 kms ans.

Answer 2

Ans is 405 km

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