Question

There are 20 students on the school's student council. A special homecoming dance committee will be formed by randomly selecting 6 students from student council.
How many possible committees can be formed?

Answer 1

3, because 6x3=18 and there'd be two people left over. And you need six people to form 1 committe and there's only two people left over so those two people just wouldn't be able to be part of anything.

Hope, this helps. :D