Pizza is served in the school cafeteria every fourth school day. Tacos are served every third school day. Both Pisa and tacos were served today. In how many school days will pizza and tacos be served on the same day again?

Answer: Tacos and Pizza both will be served on 12th day of school Explanation:Given, pizza is served in the school cafeteria every fourth school day. And, on every 3rd school day Tacos are being served. If both are served today then we have to find the number of days after which both will be served on the same day again. Taking LCM  of 4 and 3 to solve the question, LCM of 4 and 3 = 4×3 = 12 Therefore, after 12 days both will be served on the same day.