Question 460628

Distance traveled by train A during (7:37 - 7:25) i.e  12 minutes 

= 100 * 12/60 = 20 miles


relative velocity = 110-100= 10 miles/hour

time = 20/10 = 2 hours


so, after 2 hours B will catch Train A.



Everyone is welcome to get free online help: sudhanshu.cochin@gmail.com