Problema Solution
Two trains are 333 miles apart, and their speeds differ by 23 mph. Find the speed of each train if they are travelin toward each other and will meet in 3 hours.
Answer provided by our tutors
let
v = the speed of the slower train, v>0
v + 23 = the speed of the faster train
d = 333 mi the distance between them
t = 3 hr
since distance = speed*time we have:
vt + (v + 23)t = 333
3v + 3(v + 23) = 333
by solving we find:
v = 44 mph
click here to see the step by step solution of the equation:
v + 23 = 44 + 23 = 67 mph
the speed of the slower train is 44 mph.
the speed of the faster train is 67 mph.