Six students are equally divided into 3 groups, then, the three groups were assigned to three different topics. How many different arrangements are possible?  Answers.
A) 30	B) 60	C) 90	D) 180	E) 540
Ways of selecting group = 6902 * 4902 * 2902 / 3! = 15   Three groups can select three subjects in 6 ways   Therefore total combinations = 15*6= 
<gadget id="calculator">15*6</gadget>
<output>90</output>
90   ANSWER:90
<result>C</result>
Six students are equally divided into 3 groups, then, the three groups were assigned to three different topics. How many different arrangements are possible?