Question

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

Answer 1

For 9 km it takes 5 minutes and for 90 km it takes 15 minutes

Answer 2

3 hr 20 min = 200 mins

360km = 200 mins
90km = ?

=90*200/360
=18000/360
=1800/36
=50 mins