In how many ways can the letters of word' DELHI' be arranged, so that the vowels occupy only in even places.
2
6
12
36
The number of positive integer solution (x,y,z) of the equation x y z = 24 is
18
20
24
30
The number of words formed with the letters of PATALIPUTRA without changing the order of the vowels and consonants
1200
1350
2400
3600
It is required to seat 5 men and 4 women in a row, so that women occupy the even places. How many such arrangements are possible?
9
120
2880
If 56 P (r+6): 54 P (r+3) =30800: 1, then the value of r is
40
41
42
43
In a cricket match between two teams X and Y, the team X requires 10 runs to win in the last 3 balls. If the possible runs that can be made from a ball be 0,1,2,3,4,5,6 the number of sequence of runs made by the batsman is
21
How many ways are there to arrange the letters in the word 'GARDEN' with vowels in alphabetical order?
360
240
480
How many numbers can be formed with digits 1,2,3,4,3,2,1 .So that odd digits always occupy the odd places?
Twenty persons were invited for a party.The different number of ways in which they can be seated on a circular table with two particular persons seated on either side of host is
19!
18!
20! x 2
18! x 2!
