Question

Al Calls me every 3 days, Bob calls me every 4 days and Chris calls me every 6 days. On which day will all three calls be the same?

Answer 1

On the 12th day they will all be the same because 6’s multiples are 6,12,etc. 3’s multiples are 3,6,9,12,etc. And, 4’s multiples are 4,8,12,etc.