Posted by Anonymous on Saturday, July 13, 2013 at 5:12pm.
each of 5 basketball teams in a league played N games with each of the 4 other teams.
If no games were played outside the league, which of the following could NOT be the number if games played by one team?
A. 8
B. 14
C. 16
D. 20
E. 32

Math  MathMate, Saturday, July 13, 2013 at 5:16pm
If each team plays with each of the other four teams N times, then the number of games played would be:
4, 8, 12, ...
Can you find which of the five numbers does not belong?

Math  Anonymous, Saturday, July 13, 2013 at 5:18pm
So its 8?

Math  Ms. Sue, Saturday, July 13, 2013 at 5:25pm
Obviously you did not read MathMate's answer.

Math  Anonymous, Saturday, July 13, 2013 at 5:29pm
Oh 14?

Math  Ms. Sue, Saturday, July 13, 2013 at 5:30pm
Right.
14 is the only number that is not a multiple of 4.

Math  Anonymous, Saturday, July 13, 2013 at 5:32pm
Thank you!

Math  Ms. Sue, Saturday, July 13, 2013 at 5:34pm
You're welcome.
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