Question

Ann and John walk around a track. Ann walks each lap in 9 minutes. John walks each lap in 12 minutes. The two of them begin at the starting line at the same time. They walk until they meet again at the starting line.

Answer the following questions.
How many laps does Ann complete?
How many laps does John complete?
How much time does it take for them to meet again at the starting line?

Answer 1

Ann completes 4 laps, John completes 3 laps, and it takes 36 minutes for them to meet again at the starting line.

Step-by-step explanation:

Let's start by finding the common multiple of 9 and 12, which is 36. This means that after 36 minutes, both Ann and John will be back at the starting line.

To find out how many laps Ann completes, we can divide 36 (total time) by 9 (time per lap). The result is 4. So Ann completes 4 laps.

To find out how many laps John completes, we can divide 36 (total time) by 12 (time per lap). The result is 3. So John completes 3 laps.

Since Ann completes 4 laps and each lap takes 9 minutes, the total time it takes Ann to meet John again at the starting line is 4 x 9 = 36 minutes.