2. 11! Can be written as,
A 11-10-10!
B. 11.9.7!
C. 11.10.9!
D. 11.12.13!
E. 13.12.11!
3. An event can occur in three ways, then is followed by other event which can occur in 5 ways. How
many ways the two events can occur?
A. 2
C. 10
D. 15
E. 20
B. 8
4. The permutation of k elements which are taken from n elements are provided, can be notated by ...
A. P(k,n)
E.nl/k!
B. Pn,k)
C. C(k,n)
D. C(n,k)
5. The value of 6!/2!4! is equal to
A 60
B. 30
C. 20
D. 15
E. 10
6. What is P(7,3) equal to?
A. 7!/3!
B. 7!/4!
C. 71/(4:39)
D. 41/7!
E. 31/7!
7. The value of P(5,2) is equal to ...
A. 60
B. 20
C. 10
D. 7
E. 3
8. The number of permutation of letters of the word "OLALA" can be expressed as..
A. 5!/2!
B. 5!/3!
C. 5!/(2:29) D. 5!/(21:39)
E. (3!-2!)75!
9. How many ways can 8 people be seated at a square table?
A. 5040
B. 5030
C. 5020
D. 5010
E. 5050
10. How many different 8 letter words (real or imaginary) can be formed from the letters in the word
BANANA?
A.50
B. 60
C. 70
E. 80​