Question

rains a and b are traveling in the same direction on parallel tracks train a is traveling 80 per hour and train b is traveling 84 miles per hour. train a passes a station at 8:15pm if train b passes the same station at 8:45
when will train b catch up with train a?

Answer 1

Train a time1 = t hrs,
Train b time2 = (t - 0.5) hrs.

d2 = d1,
speed2*time2=speed1*time1
84(t - 0.5) = 80t,
84t - 42 = 80t,
84t - 80t = 42,
4t = 42,
t = 42/4 = 10.5 hrs,
(t - 0.5) = 10.5 - 0.5 =10hrs to catchup.

Answer 2

so the time would be 10:30 pm right?

Answer 3

6:45 am

Answer 4

hope it helps!