How many words with or without meaning, can be formed by using all the letters of the word, ‘ORANGE’, using each letter exactly once?  Choose the correct choice from the following answers:	A) 700	B) 720	C) 750	D) 800	E) 820
The word ‘ORANGE’ contains 6 different letters.   Therefore, Required number of words= Number of arrangement of 6 letters, taken all at a time   =6P6   = 6!   = 6*5*4*3*2*1= 
<gadget id="calculator">6*5*4*3*2*1</gadget>
<output>720</output>
720   ANSWER:720
<result>B</result>
How many words with or without meaning, can be formed by using all the letters of the word, ‘ORANGE’, using each letter exactly once?