What fraction of the letters are vowels in the word UMBRELLA ?

In how many ways can be letters of the word "MULTIPLE" be arranged without changing the order of the vowels in the word ?

What is the number of words that can be formed from the letters of the word 'UNIVERSAL', the vowels remaining always together ?

Find how many word can be formed of the letters in the word "FAILURE" so that the vowels main never may seprated

A letter is chosen at random from the letters of the word 'PROBABILITY'. Find the probability that the letter chosen is a vowel.

Find the probability that in a random arrangement of the letters of the word SOCIAL vowel come together.

What is the probability of choosing a vowel from the word MATCH if a letter is chosen randomly from it?

What is the probability of chosing a vowel from the word MATCH if a letter is chosen randomly from it ?

A word of at least 5 letters is made at random from 3 vowels and 3 constants, all the letters being different. The probability that no consonant falls between any two vowels in the word is