How many words can be formed by using all letters of the word ‘BIHAR’ ? Pick one:
A) 110	B) 120	C) 130	D) 140	E) None of these
Solution   The word BIHAR contains 5 different letters.   Required number of words = 5P5 = 5 ! = (5 x 4 x 3 x 2 x 1) = 120, Answer 120
<result>B</result>
How many words can be formed by using all letters of the word ‘BIHAR’ ?