Question

What is the value of 100P2 ?
A) 10000
B) 9900
C) 8900
D) 7900

Answer 1

$\bf\huge\color{red}{ANSWER}$

Here in 100P2, P says that permutations and is defined as in how many ways 2 objects can be selected from 100 and can be arranged.

 

That can be done as,

 

100 P2 100 P2  = 100!/(100 - 2)!

= 100 x 99 x 98!/98!

= 100 x 99 

= 9900.

Answer 2

Q:

What is the value of 100P2 ?

A) 10000
B) 9900
C) 8900
D) 7900

Answer:   B) 9900 

Explanation:

Here in 100P2, P says that permutations and is defined as in how many ways 2 objects can be selected from 100 and can be arranged.
 
That can be done as,
 
100 P2  = 100!/(100 - 2)!
= 100 x 99 x 98!/98!
= 100 x 99 
= 9900.