Question 278076
Train A is traveling at 100 miles per hour, and train b is traveling at 104 miles per hour/ 
Train A passes the station at 4:25 a.m and train B passes the station at 4:55 a.m.
What time will train B catch up to train A?
:
from the given information, we know that train B is 30 min (1/2 hr) behind
 train A, when train A passes the station
:
The distance between the trains at this time: {{{1/2}}} * 104 = 52 mi
:
Let t = time required for train B to catch train A
:
write a distance equation: Dist = speed * time
:
Train B travel dist = Train A travel dist + 52 mi
104t = 100t + 52 
104t - 100t = 52
4t = 52
t = {{{52/4}}}
t = 13 hrs
:
4:25 am + 13:00  = 5:25 pm, B catches A