Evaluate Each of the Following:8p3 - Mathematics

Evaluate each of the following:

8P3

Solution

8P3
nPr =$\frac{n!}{(n - r)!}$

∴ 8P3 =$= \frac{8!}{(8 - 3)!}$

$= \frac{8!}{5!}$
$= \frac{8(7)(6)(5!)}{5!}$
$= 8 \times 7 \times 6$
$= 336$
Concept: Permutations
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APPEARS IN

RD Sharma Class 11 Mathematics Textbook
Chapter 16 Permutations
Exercise 16.3 | Q 1.1 | Page 28