Multiple choice

David exercises every 11th day and Patrick exercises after every 5th day. If they exercise together today then on which day will they exercise together again?

  1. 11th day

  2. 33rd day

  3. 44th day

  4. 55th day

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

David exercises every 11th day (cycle of 11) and Patrick every 5th day (cycle of 5). They exercise together today and will again when both cycles complete. Find LCM(11, 5) = 55. They'll exercise together again on the 55th day.