Question

Q.15 A train is moving at a uniform
speed of 80 km/hr
i) how far will it travel in 20 min
ii) Find the time required to cover a distance of 240 km.​

Answer 1

Step-by-step explanation:

given speed of train is consatant =80km/hr

so it can be also written as 80×5/18=25m/s

i) in 1 min it has 60 seconds

so I we know that 1 s it travel 25m

in 60 second it will be 25×60m

it will travel 1500m or 1.5km

ii) train travel at a constant speed 80km /hr

given distance is 240 km

we know that speed =distance covered /time taken

time taken=distance covered / speed it can be also written in this form

so time taken =240/80

time taken will be 3 hours