a passenger train and a freight train leave at 10:30a.m. from stations that are 405 miles apart. The trains travel toward each other at a constant speed, the passenger train traveling 45mph faster than the freight train. if they pass each other at 1:30p.m., how fast is the passenger train traveling, in miles per hour?
75
82.5
90
95
105
2007-01-30 10:06:57 · 4 answers · asked by devincr 1 in Cars & Transportation ➔ Rail
None of the above.
The freight train gets dumped into the second siding out of town because that's the only place it will fit, so it sits and waits for Amtrak for 3' and 42".
2007-01-31 06:06:02 · answer #1 · answered by Samurai Hoghead 7 · 0⤊ 0⤋
passenger trains is traveling at 90mph.
3x + (45 + x)3 = 405.
which gives x = 45, speed of the freight train,
x = 45 = 90, which is the speed of the passenger trains.
Hope this helps
2007-01-31 00:04:53 · answer #2 · answered by curio 3 · 0⤊ 0⤋
well i agree with ya that the train passes but the switch gets thrown as does the freight train over a darn bridge
75 mph as thats the standard us rail passanger speed limit on most r.r.
2007-02-01 01:04:45 · answer #3 · answered by Anonymous · 0⤊ 0⤋
tell your teacher this is a moot problem...the reason being that
the passenger train was an Amtrak train and it broke down three miles out of the station
2007-02-03 04:05:34 · answer #4 · answered by conx-the-dots 5 · 0⤊ 0⤋