S=abcdef….z, `mu` = {Vowels in S} and B={ Vowels in even positions of S} .Find n(B')

In the English alphabet, if all the letters (excluding vowels) in the even position are substituted by 3, all the letters (excluding vowels) in odd position are substituted by 4 and the vowels are substituted by 5, then what will be the total of the numeric values of the letters of the word BEAD? 1) 16 2) 29 3) 18 4) 20 5) None of these

Determine the number of arrangements of letters of the word ALGORITHM if. (a) vowels are always together. (b) no vowels are together. (c) consonants are at even positions. (d) O is the first and T is the last letter.

Find mu_(s) between A and B.

Find mu_(s) between A and B.

If A is an empty set and B is a set of vowels, then A nn B is