A. 1/16
B. 3/16
C. 5/16
D. 15/16
The number of ways that all the letters of the word SWORD can be arranged such that no letter is in its original position is
A set contains (2n+1) elements. The number of subsets of the set which contain more than n elements is
The number of arrangements of arranging 6 players to throw the cricket ball so that the oldest player may not throw first is
The number of 6 digited numbers which are not divisible by 5 that can be formed with the digits 4,5,6,7,8,9 is
The number of numbers less than 2000 that can be formed using the digits 1,2,3,4 when repetition is allowed is
A: If there are 8 points in a plane no three of which are on the same straight line except 4 points are collinear then the number of straight lines formed by joining them is 23
R: If there are n points in a plane no three of which are on the same straight lie except p points are collinear then the number of straight lines formed by joining them is nC2 – pC2 +1
If a denotes the number of permutations of x+2 things taken all at a time, b the number of permutations of x-11 things taken all at a time such that a=182bc, then the value of x is
The number of numbers between 1 and 1010 which contain the digit 1 is
The number of ways in which 7 distinct boys can be distributed among 3 children when each child is eligible to take all the toys is
The number of 4 digited numbers that can be formed using the digits 0,1,2,3,4 that are divisible by 4 when repetition is allowed is