Question

20.10. If a train runs at 40 km/ph it reaches its destination late by 11 minutes. But if it runs at
50 kmph it is late by 5 minutes only. Find the distance to be covered by the train​

Answer 1

Answer:

Let the correct time for the train to complete the journey is x minuets

Then train cover distance in x+11 minuets at speed 40 km\hr =

60

40(x+11)

km

Then train cover distance in x+5 minuets at speed 50 km\hr =

60

50(x+5)

km

Both are same then

60

40(x+11)

=

60

50(x+5)

∴40x+440=50x+250

∴−10x=−190

∴x=19 minutes