MathDB
Problems
Contests
National and Regional Contests
Turkey Contests
National Olympiad First Round
2012 National Olympiad First Round
8
8
Part of
2012 National Olympiad First Round
Problems
(1)
Turkish NMO First Round - 2012 Problem - 08 {Combinatorics}
Source:
7/1/2012
In how many different ways can one select two distinct subsets of the set
{
1
,
2
,
3
,
4
,
5
,
6
,
7
}
\{1,2,3,4,5,6,7\}
{
1
,
2
,
3
,
4
,
5
,
6
,
7
}
, so that one includes the other?
<
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(
A
)
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2059
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(
B
)
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2124
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(
C
)
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2187
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(
D
)
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2315
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(
E
)
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2316
<span class='latex-bold'>(A)</span>\ 2059 \qquad <span class='latex-bold'>(B)</span>\ 2124 \qquad <span class='latex-bold'>(C)</span>\ 2187 \qquad <span class='latex-bold'>(D)</span>\ 2315 \qquad <span class='latex-bold'>(E)</span>\ 2316
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(
A
)
<
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2059
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(
B
)
<
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>
2124
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(
C
)
<
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2187
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(
D
)
<
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2315
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(
E
)
<
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>
2316
algebra
binomial theorem