Question
Which of the following matches the definition given
below: It is an artificial key that aims to uniquely identify each record.Solution
The correct answer is C
How many four-letter words without repetition having exactly two vowels can be formed by using the letters of the word "SEMINAR"?
In how ways can the selection be made so that a particular member is always excluded?
...A person has 12 friends out of which 7 are relatives. In how many ways can he invite 6 friends such that at least 4 of them are relatives?
In how many ways can the letters of the word ‘MEDICAL’ be rearranged so that the vowels never come together?
In how many different ways can the letters of the word ‘FLOWER’ be arranged in such a way that the vowels occupy only the odd positions?
From 6 men and 5 women, a committee of 4 is formed. In how many ways can it be formed with at least 2 women?
- How many four-letter words without repetition having exactly two vowels can be formed by using the letters of the word "PAINTER"?
A group consists of 9 boys and 7 girls. In how many ways can 4 boys and 3 girls be selected from the group?
- How many four-letter words without repetition having exactly two vowels can be formed by using the letters of the word "MEASURE"?
A letter is randomly selected from the word "DETACHMENT." What is the probability that the selected letter is a vowel?
