buses to stadium leave :10 20 30 40 50 60 70 80 90 ....
buses to zoo leave 16 32 48 64 80 96 ....
ahhh, looks like we need the lowest common multiple.
buses to the stadium leave central station every 10 minutes buses to the zoo leave central station every 16 minutes both buses leave central station at 4 p.m. find the next time both buses will leave central station at the same time.
2 answers
5:20 pm minutes after 4:00 pm