A rack has 5 different pairs of shoes. The number of ways in which 4 shoes can be chosen from it so that there will be no complete pair is

Column I, Column II The number of five-digit numbers having the product o digit 20 is, p. > 70 A closest has five pairs of shoes. The number of ways in which four shoes can be drawn from it such that there will be no complete pair is, q. <60 Three ladies have each brought their one child for admission to a school. The principal wants to interview the six persons one by one subject to the condition that no mother is interviewed before her child. The number of ways in which interview can be arranged is, r. in (50 ,110) The figures 4, 5, 6, 7, 8 are written in every possible order. The number of numbers greater than 56000 is, s. in (40 ,70)

The number of ways in which n ties can be selected from a rack displaying 3n different ties, is

A person has 5 shirts, 4 coat and 7 ties . Number of ways in which he can wear them is

There are 10 different books in a shelf. The number of ways in which three books can be selected so that exactly two of them are consecutive is

The number of ways in which 5 boys and 3 girls can be seated in a row, so that no two girls sit together is

The number of ways in which 5 X's can be placed in the squares of the figure so that no row remains empty is:

The number of ways in which 5 letters can be placed in 5 marked envelopes, so that no letter is in the right encelope, is

Find the number of ways in which 5 boys and 3 girls can be seated in a row so that no two girls are together.

Seven different letters are given. Then the number of ways in which , words of 5 letters can be formed such that atleast one of the letters is repeated is

The number of ways in which 5 beads of different colours can be made into a necklace is