Question

After how many minutes will both Ambrose and Kaitlin take a break at the same time if Kaitlin works for 13 minutes and Ambrose works for 7 minutes before taking a break?

A) 91 minutes
B) 143 minutes
C) 169 minutes
D) 182 minutes

Answer 1

The LCM of 7 and 13 is 91 minutes, so Ambrose and Kaitlin will take a break at the same time after 91 minutes.

Step-by-step explanation:

To determine when both Ambrose and Kaitlin will take a break at the same time, we need to find the least common multiple (LCM) of the times they work before taking a break.

Ambrose works for 7 minutes, and Kaitlin works for 13 minutes.

The LCM of 7 and 13 is 91 minutes. Therefore, both Ambrose and Kaitlin will take a break at the same time after 91 minutes.