Question

the bus and the bus b both stops at the bus station at 12:00. the bus stops there every 20 minutes and the bus b stops there every 8 minutes. When do they stop there again?

Answer 1

Step-by-step explanation:

Hi! The answer to this question relies on you figuring out the lowest common multiple for 20 and 8. Clearly, 8 does not divide into 20, so the next step up would be to try 40 (20x2). 40/8 is 5, so 40 is a common multiple of both 20 and 8.

This means that 12:40 is the next time both buses stop at the station. Hope that makes sense!