Question 31773
Express train data:
distance=114; rate=(x+27); time=114/(x+27)
Freight train data:
distance=96; rate=x : time= 96/x
EQUATION:
Time = Time
96/x+=114/(x+27)
114x=96x+(96)(27)
18x=(96)(27)
x=16(9)
x=144mph (rate of the Freight train)
x+27=171mph (rate of the express train)
Cheers,
stan H.