The number of permutations of n different objects taken r at a time, w…

Question

The number of permutations of n different objects taken r at a time, with no repetition, is written as:

Accepted Answer

B. nPr

1. The count runs from n down for r terms.
2. A special symbol stands for it.
3. It is written nPr.
_Source: syllabus Mathematics, Chapter 7, Permutations and Combinations._

Answer

nTr

Answer

nQr

Answer

nSr

The number of permutations of n different objects taken r at a time, with no repetition, is written as:

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