I really need this answer )))

Both the football and volleyball teams have games today. The football team plays every 7 days. The volleyball team plays every 3 days. When will both teams have games on the same day again?
a.
in 14 days
c.
in 7 days
b.
in 21 days
d.
in 10 days

Question

I really need this answer )))

Both the football and volleyball teams have games today.  The football team plays every 7 days.  The volleyball team plays every 3 days.  When will both teams have games on the same day again?
a.
in 14 days
c.
in 7 days
b.
in 21 days
d.
in 10 days

amistre64 · Answer

when do they share a common multiple of days?

amistre64 · Answer

they have a ratio of  7:3

7:3
7:6
7:9

14:9
14:12
14:15

21:15
21:18
21:21  .... looks like they meet up here

anonymous · Answer

thnx so much!

amistre64 · Answer

yw