Question

Two buses leave the station at the same time and travel in opposite directions. One bus averages 30 mph and the other bus averages 60 mph. When will they be 540 miles apart?

a) 3 hours
b) 6 hours
c) 9 hours
d) 12 hours

Answer 1

The two buses will be 540 miles apart after 6 hours.

Step-by-step explanation:

To find the time it takes for the two buses to be 540 miles apart, we can use the formula: time = distance / speed. The distance between the two buses is increasing at a combined rate of 30 mph (the first bus) + 60 mph (the second bus) = 90 mph. So, the time it takes for them to be 540 miles apart is: time = 540 miles / 90 mph = 6 hours.

Therefore, the correct answer is b) 6 hours.