The first train leaves the station at 7:00 am with a speed of 60 km/hr. The second train leaves at 8:30 am, in the same direction from the same station, with a speed of 80 km/hr. What time will the second train catch the first train?
Choose the correct choice from the following answers
A) 11:00 am
B) 12:00 noon
C) 1:00 pm
D) 2:00 pm
E) 3:00 pm
In ninety minutes, the first train travels 90 km.   The second train catches the first train with a relative speed of 20 km/h.   The second train will catch the first train in 4.5 hours.   The second train will catch the first train at 1:00 pm.   The answer is 1:00 pm.
<result>C</result>
The first train leaves the station at 7:00 am with a speed of 60 km/hr. The second train leaves at 8:30 am, in the same direction from the same station, with a speed of 80 km/hr. What time will the second train catch the first train?