A committee that includes 6 members is about to be divided into 2 subcommittees with 3 members each. On what percent of the possible subcommittees that Michael is a member of is David also a member?	Pick: A) 10% B) 20% C) 25% D) 40% E) 50%
Committee #1: 50% chance that David will be a member, leaving 2 possible spots the other 5 people. Michael's chances of being one of those 2 is 2/5 or 40%. Chances of David and Michael being on this committee is   50%x40%=20%.   Committee #2: Same.   20% + 20% = 40%.   ANSWER:40%20  + 20= 
<gadget id="calculator">20  + 20</gadget>
<output>40</output>
40%.   ANSWER:40%
<result>D</result>
A committee that includes 6 members is about to be divided into 2 subcommittees with 3 members each. On what percent of the possible subcommittees that Michael is a member of is David also a member?