How many words with or without meaning, can be formed by using all the letters of the word, 'DELHI' using each letter exactly once?
Choose the most appropriate option
A) 720	B) 24	C) None of these	D) 120	E) 247
Explanation :   The word 'DELHI' has 5 letters and all these letters are different.   Total words (with or without meaning) formed by using all these   5 letters using each letter exactly once   = Number of arrangements of 5 letters taken all at a time   = 5P5 = 5! = 5 x 4 x 3 x 2 x 1 = 120. Answer : Option 120
<result>D</result>
How many words with or without meaning, can be formed by using all the letters of the word, 'DELHI' using each letter exactly once?