Recent questions tagged combinatory

0 votes
0 answers
91
What is the total number of integer partitions ( unordered Summation) of the natural number 8 ?I am getting 22. Is it correct ?
0 votes
1 answer
92
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1 answer
93
0 votes
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94
Consider the set of 4 -digit positive integers. How many of them have their digits in :-a) strictly decreasing order ?b) non decreasing order ?c) non increasing order ?...
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96
There are 6 periods in each working day of a school. In how many ways can one organize 5 subjects such that each subject is allowed at least one period?A. 3200B. 3600C. 1...
3 votes
2 answers
99
1 votes
1 answer
106
How many 3 digits number are there which are divisible by 3 and repetition of digits NOT allowed.?
7 votes
4 answers
107