Question:
In how many ways can the letters of the word DELHI be arranged keeping the positions of vowels and consonants unchanged?
In how many ways can the letters of the word DELHI be arranged keeping the positions of vowels and consonants unchanged?
Options:
- a) 6
- b) 9
- c) 12
- d) 24
- a) 6
- b) 9
- c) 12
- d) 24
correct answer : c)
Explanation:
Number of arrangements
= 3!2! = 12
Number of arrangements
= 3!2! = 12