Recent questions tagged permutation

4 votes
1 answer
1
The number of ways of arranging 10 books on a shelf such that 2 particular books are always together is
4 votes
3 answers
2
3 votes
1 answer
3
How many ways $10$ roses can be distributed among $3$ girls?
2 votes
1 answer
5
A man has nine friends, four boys and five girls. In how many ways can he invite them, if there have to be exactly three girls in the invitees?$320$$150$ $80$$200$
1 votes
1 answer
6
Out of 100 students, 10 students used to drink milk(M), coffee(C) and Tea(T); 20M and C; 30C and T; 25M and T; 12M only; 5C only and 8T only. The number of students who d...
0 votes
1 answer
7
How many 3-digit numbers can be formed from the digits 2,3,5,6,7 and 9,which are divisible by 5 and none of the digits is repeated ?
0 votes
1 answer
8
An advertising board is to be designed with 5 vertical stripes using some or all of colors red, yellow and orange. In how many ways board can be designed such that no two...
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