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An arrangement in a definite order of a number of objects is called a:
APermutation
BPerforation
CPreparation
DPresentation
Answer & Solution
Correct answer: A. Permutation
1. Counting problems split by whether the order of the objects matters.
2. When it does, the arrangement has its own name.
3. A permutation is an arrangement in a definite order of a number of objects.
4. They may be taken some or all at a time.
_Source: NCERT Class XI Mathematics, Ch 6 'Permutations and Combinations'_
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