Question

A carton contains 12 eggs of which 1 is bad. How many ways can you select 3 good eggs.?

Answer 1

1,2,3
2,3,4
3,4,5
4,5,6
To 11,1,2.
11 different ways.

Answer 2

do they have to be in sequence? Why not, say, 2,9,10 ?

Answer 3

11C3=11!/(11-3)!3! =165ways