SOLUTION: two towns are 780 kms apart .two superfast trains leave from both the townsat 3 pm towards each other at the speed of 120 and 140 km/hr each.at what time will the trains pass each

Question 390238: two towns are 780 kms apart .two superfast trains leave from both the townsat 3 pm towards each other at the speed of 120 and 140 km/hr each.at what time will the trains pass each other
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
You can think of one train as standing still
and the other train moving at the sum of
their speeds
The formula for the moving train is

hrs
The trains will pass at 3 PM + 3 hrs, or 6 pm
You can also check answer this way:
slower train:

km
faster train:

km
OK
RELATED QUESTIONS
2 towns are 780km apart. 2 super fast trains leave from both the towns at 3pm towards... (answered by lwsshak3,josmiceli)

Two Trains start from two opposite directions towards each other. The stations from... (answered by Theo)

Two trains are traveling at 250 miles apart and traveling towards each other . They meet... (answered by lwsshak3)

Two trains, one traveling twice the speed of the other, start st the same time from... (answered by Boreal,greenestamps)

The speed of one train is 15 km/h greater than that of another train . Both trains leave... (answered by Boreal)

please help solve this problem, thanks Two trains, one traveling twice the speed of the... (answered by checkley79)

Two trains start from towns 224 mi apart and travel towards each other on parallel... (answered by ikleyn)

. Two trains are 2 kms apart. Speed of one train is 20m/s and the other train is running... (answered by Alan3354)

Two towns are 243 miles apart. Bob and Joe each start in on of the towns at 12:00 PM and (answered by solver91311)