While at school brain has a math quiz every 6 days and a science quiz every 4 days on February 15 he

Question

...  had both test. When will he have both test on the same day

Answer

In 60 days time e.g April 16

Answer

It's about the least common multiple. With small numbers like here use prime factors:

4 = 2 * 2
6 = 2 * 3

So, the LCM is 2 * 2 * 3 = 12

In 12 days Brian has his next double quiz day.

While at school brain has a math quiz every 6 days and a science quiz every 4 days on February 15 he

Answers (2)