Question

The school serves tacos every 6th day and cheeseburgers every 8th day. If tacos and cheeseburgers are both on today’s menu, how many days will it be before they are both on the menu again?

Answer 1

6
12
18
24
30
36
42
48

8
16
24
32
40
48

Answer 2

6=3*2

8=2*2*2

least common multiple = 2*2*3*2 = 24

On the 24th day, we will be served taco's and cheeseburgers again.