If a 3-member subcommittee is to be formed from a certain 6-member committee, how many different such subcommittee are possible?	Choices.
A) 6	B) 18	C) 20	D) 108	E) 216
1st member can be selected in 6 ways   2nd can be selected in 5 ways   3rd can be selected in 4 ways   So total ways : 120   But to avoid the similar scenarios 120/3!=20   ANS:20
<result>C</result>
If a 3-member subcommittee is to be formed from a certain 6-member committee, how many different such subcommittee are possible?