Answer:
y=800 km
Step-by-step explanation:
Let the distance traveled by train be y and by bus be x.
Bus -x
Train -y
y=x+150 (since they traveled by train for a distance of 150 km more than by bus.)
The sum of the two is equal to 1450
x+y=1450
The two equations form simultaneous equations which when solved simultaneously give the values of x and y.
y+x=1450
y-x=150
Adding the two we get:
2y=1600
Divide both sides by two:
y=800 km
Y is the distance traveled by train= 800 km