Question

two trains, Kanpur Mali and delhi Mali , start at the same time from station kanpur and delh respectively towards each other .after passing each other , they take 12 hours and 3 hours to reach delhi and Kanpur respectively. if the Kanpur mali is moving at the speed of 48 km/hr , then speed of the delhi mali is​

Answer 1

Answer:

70km/hr1sttrain2ndtrain990km/hr

∣−−−−−−−−−−−−−−−∣

KanpurAgra

Let us assume that the second train has traveled 350km more than the first train because speed of second train is (20km/hr) more than the first train and their starting time is same.

Time taken by the second train to cover 350km with the surplus speed of 20km/hr=

20km/hr

350km

=17.5hrs.

This time both the train takes before meeting point in opposite direction.

Relative speed of both train in opposite direction

=70km/hr+90km/hr=160km/hr

∴ Total distance covered =17.5hr×160km/hr=2800km