How many words with or without meaning, can be formed by using all the letters of the word, â€˜POWERâ€™, using each letter exactly once? Choose the correct choice
A) 700  B) 720  C) 750  D) 800  E) 120
The word â€˜POWERâ€™ contains 5 different letters.   Therefore, Required number of words= Number of arrangement of 5 letters, taken all at a time   =5P5   = 5!   = 5*4*3*2*1= 
<gadget id="calculator">5*4*3*2*1</gadget>
<output>120</output>
120   ANSW120R:120
<result>E</result>
How many words with or without meaning, can be formed by using all the letters of the word, â€˜POWERâ€™, using each letter exactly once?