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A selection of 3 different objects taken 2 at a time is called a:
ACombination
BComplication
CContinuation
DConfirmation
Answer & Solution
Correct answer: A. Combination
1. The selection ignores the order in which the two are picked.
2. That is the defining property of one of the two counting ideas.
3. Each such selection is called a combination of 3 different objects taken 2 at a time.
4. So the answer is a combination.
_Source: NCERT Class XI Mathematics, Ch 6 'Permutations and Combinations'_
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