8: 54 a. m.
9: 12 a. m.
9: 24 a. m.
10: 24 a. m.
11: 18 a. m.
light a flashes every 12 minutes, and light b
flashes every 18 minutes. the two lights flash
at the same time at 8: 00 a. m. at how many of
the times listed above will they again both
flash at the same time?
f. 1
g. 2
h. 3
j. 4
k. 5