EASY
JEE Advanced
IMPORTANT
Earn 100
The number of ways of distributing identical balls in distinct boxes, so that none of the boxes is empty, is
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Important Questions on Permutation and Combination
EASY
JEE Advanced
IMPORTANT
The number of ways in which men and women can dine at a round table, if no two women are to sit together, is given by
EASY
JEE Advanced
IMPORTANT
If denotes the number of combinations of things taken at a time, then the expression equals
EASY
JEE Advanced
IMPORTANT
How many -digit telephone numbers can be constructed using the digits to if each number starts with and no digit appears more than once?
EASY
JEE Advanced
IMPORTANT
A student is allowed to select at most books from a collection of books. If the number of ways in which he can do this, is then the value of is
EASY
JEE Advanced
IMPORTANT
is to be partitioned into four sets and of equal size. The number of ways it can be done is
EASY
JEE Advanced
IMPORTANT
In how many ways can a student choose a program of courses, if courses are available and specific courses are compulsory for every student?
EASY
JEE Advanced
IMPORTANT
different toys are to be distributed among children. The total number of ways of distributing these toys, so that exactly two children do not get any toy is
EASY
JEE Advanced
IMPORTANT
Out of consonants and vowels, the number of words (not necessarily meaningful) that can be made, each consisting of consonants and vowels is
