There are 3 red chips and 3 blue ones. When arranged in a row, they form a certain color pattern, for example RBRRB. How many color patterns? Pick one: A) A)10 B) B)12 C) C)24 D) D)60 E) E)200
Using anagram method:   @NL6_ 5_4_3_2_1   R_R_R_B_B_B   so..   6!/Number of repeated letters (3!)(3!) = 20   ANS:200
<result>E</result>
There are 3 red chips and 3 blue ones. When arranged in a row, they form a certain color pattern, for example RBRRB. How many color patterns?