Question

Solve

Answer 1

its easier for me to keep track of if the question is posted in the same window ... otherwise i tend to mix things up more than usual

Answer 2

what have you tried to work up so far?

Answer 3

since distance is equal to speed times time

bus speed times time b, plus train speed times time t = 600km

time a + time b = 9 hours

we are given that the bus speed is train speed - 20 km/hr

Answer 4

we also have the condition that the bus traveled 3/5 of the way and the train traveled 2/5 of the way

Answer 5

the bus travels 600*3/5 = 360 km
the train travels 600*2/5 = 240 km

speed x time = distance

(train - 20) b = 360
train a = 240

a + b = 9

these can be used to solve it