How many words can be formed by using all letters of TIHAR	Choose the correct answer:  A) 100  B) 120  C) 140  D) 160  E) None of these
Explanation:   First thing to understand in this question is that it is a permutation question.   Total number of words = 5   Required number =   5P5=5!=5∗4∗3∗2∗1=120   Option 120
<result>B</result>
How many words can be formed by using all letters of TIHAR