Question

A train travelling at 45 km/hr leaves Kolkata at 7 p.m. and another train to
leaves Kolkata at 7 p.m. and another train travelling at the speed
of 60 km/hr leaves Kolkata at 9 p.m. in the same direction. Find the distan
in the same direction. Find the distance from Kolkata when
the two trains are together.
​

Answer 1

Answer

Let the trains meet after x km from Delhi

Time taken by first train to travel x km =

x

25

hr

Time taken by second train to travel x km =

x

35

hr

The second train starts only after 5 hours when compared to the first train.

i.e, time taken by the first train to travel x km - 5 = time taken by the second train to travel x km

x

25

−

5

=

x

35

14x - 1750 = 10x

4x = 1750

x = 437.5

Required Distance from Delhi = 437.5 km