Question

Bus route A starts at the bus station and takes 40 minutes.
Bus route B also starts at the bus station and takes 30 minutes.
Both routes begin at 9��, therefore leave the bus station at the same time.
At what time do both routes leave the bus station at the same time for the fourth time in

the day?

Answer 1

Answer:

r=speed of each bus

2r=distance from each city to point P

4r=distance between two cities

2nd day early bus distance to meeting=2r+24

2nd day late bus distance to meeting=2r-24

2r+24-(2r-24)=48 miles difference between distances covered

in exactly one additional hour early bus covers 48 miles more than late bus

thus, r=48 mph

4r=192 miles distance between two cities

E