You can
put this solution on YOUR website!Let b = bus time, abd Let t = train time
.
distance = velocity * time
.
40 * b + 60 * t = 300
and b + t = 5.5,,,,, or b = 5.5 -t
.
40 ( 5.5 -t) + 60 t = 300
.
220 -40t +60t = 300
.
20t = 80
.
t=4 hrs
.
b= 5.5-4 = 1.5 hrs
.
check
.
40(1.5) + 60(4) = 300
.
60 + 240 = 300,,,,,ok