1.
 is evaluated as
A. 
B. 
C. 
D. 
2.
 is equal to
A. 
B. 
C. 
D. 
3.
7! is equal to
A. 
B. 
C. 
D. 
4.
0! is a symbol equal to
A. 
B. 
C. 
D. 
5.
In nPr ,n is always
A. 
B. 
C. 
D. 
6.
In nPr the restriction is 
Options:
A.n > r
B.
C.
D. None of these
A. 
B. 
C. 
D. 
7.
In nPr =n (n-1) (n-2) ........................ (n-r-1), the number of factor is
A. 
B. 
C. 
D. 
8.
 nPr can also written as
Options:
A.
B.
C.
D.None of these
A. 
B. 
C. 
D. 
9.
If nP4 = 12 x nP2, then is equal to
A. 
B. 
C. 
D. 
10.
If . nP3: nP2 =3:1, then n is equal to
A. 
B. 
C. 
D. 
11.
m+nP2 = 56, m-nP2 = 30 then
A. 
B. 
C. 
D. 
12.
If 5Pr= 60, then the value of r is
A. 
B. 
C. 
D. 
13.
If n1+n2 P2 = 132, n1-n2P2 = 30 then,
A. 
B. 
C. 
D. 
14.
The number of ways the letters of the word COMPUTER can be rearranged is
A. 
B. 
C. 
D. 
15.
The number of arrangements of the letters in the word FAILURE, so that vowels are always! coming together is
A. 
B. 
C. 
D. 
16.
10 examination papers are arranged in such a way that the best and worst papers never come together. The number of arrangements is
A. 
B. 
C. 
D. 
17.
N articles are arranged in such a way that 2 particular articles never come together. The number of such arrangements is
A. 
B. 
C. 
D. 
18.
If 12 school teams are participating in a quiz contest, then the number of ways the first, second and third positions may be won is
A. 
B. 
C. 
D. 
19.
The sum of all 4 digit number containing the digits 2, 4, 6, 8, without repetitions is
A. 
B. 
C. 
D. 
20.
The number of 4 digit numbers greater than 5000 can be formed out of the digits 3, 4, 5, 6 and 7 (no. digit is repeated). The number of such is
A. 
B. 
C. 
D. 
21.
4 digit numbers to be formed out of the figures 0, 1, 2, 3, 4 (no digit is repeated) then number of such numbers is
A. 
B. 
C. 
D. 
22.
The number of ways the letters of the word "Triangle" to be arranged so that the word 'angle' will be always present is
A. 
B. 
C. 
D. 
23.
If the letters word 'Daughter' are to be arranged so that vowels occupy the odd places, then number of different words are
A. 
B. 
C. 
D. 
24.
The number of ways in which 7 girls form a ring is
A. 
B. 
C. 
D. 
25.
The number of ways in which 7 boys sit in a round -table so that two particular boys may sit together is
A. 
B. 
C. 
D.