Question

What is the Answer when you Evaluate 8P5?

Answer 1

Answer:  6720

Step-by-step explanation:

The number of permutations of n things taken r at a time is given by the following formula:

$^nP_r=\frac{n!}{(n-r)!}$

Similarly, for n=8 and r=5, the number of permutations of 8 things taken 5 at a time will be:

$^8P_5=\frac{8!}{(8-5)!}\\\\=\frac{8\times7\times6\times5\times4\times3!}{3!}\\\\=6720$

Hence, $^8P_5=6720$

Answer 2

The answer when you evaluate 8P5 is  6,720.