Question

Avery gets newsletters by e-mail. He gets one for sports every 5 days,one for model railroads every 10 days tone for music every 8 days. If he got all three today, how many more days will it be until he gets all three newsletters on the same day

Answer 1

If he got them all today the next closest would be 40 days from now. 5*8=40 so 40 is the next closest these two would arrive at the same time, from here we know that 4 and 10 are factors of 40 so he will also get model railroads on this day.

Explanation: