Question

A fast train covers 360km in 3hour 20minutes how much time will it take to cover a distance of 90km

Answer 1

40 minutes I think.......

hope it is right....

Answer 2

HI!

If the train is going with the constant speed,then

360 km in 3 hour and 20 min

3hr = 180 min
so total time = 200 min = 200 × 60 = 12000 seconds

Distance = 360 km = 360000 metres

so, speed = Distance/time
= 360000/12000
= 360/12
= 30 m/ s = 30 × 18/5
= 108 km/h

So time for 90 km will be

Speed = Distance/time

Let time be 'x'

108 km/h = 90/x
x = 90/108
= 45/54
= 5/6
= 0.82 hours

So train will complete 90 km in 0.82 hours which is 44 minutes approx

HOPE IT HELPS!!