Question

On February 4th, Jamie and Kevin jogged together.
•Jamie jogs 3 miles every 3 days.
•Kevin jogs 3 miles every 4 days.
What is the next time Jamie and Kevin could jog together?
A. February 11th
B. February 13th
C. February 16th
D. February 18th

Answer 1

Find the common multiples of 3 and 4:

3: 3, 6, 9 12, 15

4: 4, 8, 12, 16

The smallest common multiple for both 3 and 4 is 12, so this means every 12 days they would run together.

Add 12 days to February 4th to get February 16th.