How many different 6 letter combinations can be created from the letters A,B,C,D,E and F?
Select:
A) 216
B) 36
C) 46656
D) 1296
E) 7776
This is a case of number of arrangements possible with repetition.   Thus you have 6 options each for the 1st,2nd,3rd,4th,5th and 6th letter giving you a total of   6*6*6*6*6*6= 
<gadget id="calculator">  6*6*6*6*6*6</gadget>
<output>46_656</output>
46656 number of possible combinations.   Answer : 46656
<result>C</result>
How many different 6 letter combinations can be created from the letters A,B,C,D,E and F?