In how many ways the letters of the word LOOC be arranged?  Pick:
A) 8 B) 9 C) 12 D) 14 E) 17
In this four letters means 4! = 24 ways   But 'O' is repeated two times.   And thus we divide the final ways by 2. I.e. there are only  24/2= 
<gadget id="calculator"> 24/2</gadget>
<output>12</output>
12 ways of arranging the letters of this word.   LOOK, LOKO, LKOO, KOOL, KOLO, KLOO, OOLK, OOKL, OLOK, OKOL, OLKO, OKLO= 12 Ways   12
<result>C</result>
In how many ways the letters of the word LOOC be arranged?