Question

(please help!) Two buses leave the bus station at 8 am. If Bus #1 makes its route in a total of 60 minutes and Bus #2 makes its route in a total of 80 minutes, at what time will the two buses meet again?

Answer 1

12 pm noon

Explanation:

The least common multiple of the two times is 240 minutes, or 4 hours. The buses will meet at the station again at noon.

__

60 = 20×3

80 = 20×4

The least common multiple is 20×3×4 = 240 minutes. There are 60 minutes in an hour, so this is 240/60 = 4 hours. 4 hours after 8 am is 12 pm, noon.