Question

Do you wears a blue shirt every 3 days Larry wears a blue shirt every 4 days on April 12th both Julia and Larry wear a blue shirt what is the next date that they will both wear a blue shirt

Answer 1

The number of days after April 12th when they will again both wear a blue shirt = the lowest common multiple of 3 and 4, which is 12 days.

Answer is April 24th