Question 771275
The distance between delhi and meerut is 75 km.Two trains at a speed of 100km/hr & 80km/hr leave the two stations at 8 am towards eachother.At what time will they pass eachother

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