1.  How many words can be formed by using letters of the word 'DELHI'?

A. 50
B. 72
C. 85
D. 120

Answer: Option D

Explanation:

The word ‘DELHI’ contains 5 letters

Therefore, required number of words = 5P5 = 5! = (5 × 4 × 3 × 2 × 1) = 120

120 words can be formed by using letters of the word ‘DELHI’