7
Q:
A) 10000 | B) 9900 |
C) 8900 | D) 7900 |
Answer: B) 9900
Explanation:
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!/(100 - 2)!
= 100 x 99 x 98!/98!
= 100 x 99
= 9900.