Posted by Teresa on .
If teacher x gives a pop quiz on Monday and then every five classes, and teacher y gives a pop quiz on Monday and then every six days, how many school days will it be until both give quizzes on the same school day

Math 
Reiny,
days for test x are multiples of 5
days for test y are multiples of 6
what smallest number would be divisible by both 5 and 6 ?