Question

The distance between delhi and meerut is 75 km. two trains at a speed of 100 km/hr and 80 km/h leave the two stations at 8 am towards each other. at what time will they pass each other?

Answer 1

YOUR QUESTION IS VERY DIFFICULT.

Answer 2

Answer:

Let the distance they meet after start be x

d= rt Or t= d/r

time taken by one train = x/100

time taken by other train = (75-x)/80

These two times are same

x/100 = (75-x)/80

80x=100(75-x)

80x=7500-100x

80x+100x=7500

180x= 7500

x= 41.67 km

time they meet = 41.67/100

=0.42 hours= 25 minutes

they will cross at 8:25 AM