How many words can be formed by using all letters of the word “BIHAR”  Answers:
A) 14	B) 20	C) 420	D) 120	E) 340
The word BIHAR contains 5 different letters.   Required number of words = 5p5 = 5! = (5x4x3x2x1) = 120   Option 120
<result>D</result>
How many words can be formed by using all letters of the word “BIHAR”