Permutation Problems

Permutation Problems

**Page 1**

1.

1. If 10 identical unbiassed normal dice are thrown together then total number of different selection of outcomes such that all the dice must not show the same number on upper face

2. There are 10 straight lines in a plane, such that number 3 are concurrent and number 2 are parallel to each other. If points of intersection of above lines are joined, find maximum number of lines thus formed are including old line

Correct answer : (0)

2.

How many words can be formed from the letter of word ‘DAUGHTER’ so that

a) The vowels always come together.

b) The vowels are never together.

Correct answer : (0)