Final answer:
The 222 bus and the H98 bus will both next stop at the bus station at 12:40, which is 40 minutes after 12:00, as this is the least common multiple of their service intervals.
Step-by-step explanation:
To find out when both the 222 bus and the H98 bus will next stop at the bus station again after 12:00, we need to find the least common multiple (LCM) of their service intervals.
The 222 bus has a service interval of 20 minutes, and the H98 has a service interval of 8 minutes.
The LCM of 20 and 8 is 40, which is the smallest number that both 20 and 8 can divide into evenly.
So, both buses will be at the bus station again 40 minutes after 12:00, which is at 12:40.