In how many ways the letters of the word LOOC be arranged? Choose the correct option.
A) 10	B) 11	C) 12	D) 16	E) 18
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?