1.In how many different ways can the letters of the word “COMPLAINT” be arranged in such a way that the vowels occupy only the odd positions? (b)
a) 1440
b) 43200
c) 1440
d) 5420
2.How many Permutations of the letters of the word APPLE are there? (d)
a) 600
b) 120
c) 240
d) 60
3.In how many different ways can the letters of the word “CANDIDATE” be arranged in such a way that the vowels always come together? (a)
a) 4320
b) 1440
c) 720
d) 840
4.In a party every person shakes hands with every other person. If there are 105 hands shakes, find the number of person in the party. (a)
a) 15
b) 14
c) 21
d) 25
5.There are 10 person among whom two are brother. The total number of ways in which these persons can be seated around a round table so that exactly one person sit between the brothers , is equal to: (a)
a) 2!*7!
b) 2!*8!
c) 3!*7!
d) 3!*8!
