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Math Problems
Grade 7
Compound events: find the number of sums
Arranged the numbers in increasing order:
−
9
-9
−
9
,
−
5
-5
−
5
,
0
0
0
,
4
4
4
,
7
7
7
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Three football teams are taking part in a tournament.
\newline
Each team plays each other team once.
\newline
For a win the team scores
3
3
3
points, the other team
0
0
0
points.
\newline
For a draw both teams get
1
1
1
point each.
\newline
Which number of points is impossible, for any team to reach at the end of this tournament?
\newline
(A)
1
1
1
\newline
(B)
2
2
2
\newline
(C)
4
4
4
\newline
(D)
5
5
5
\newline
(E)
6
6
6
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