Farmer McDonald has 6 pigs to feed, but room at the feeding trough for only 2 at a time. How many combinations of 2 pigs at the trough can be made from 6 pids?
|
Farmer McDonald has 6 pigs to feed, but room at the feeding trough for only 2 at a time. How many combinations of 2 pigs at the trough can be made from 6 pids?
Combination of 6 things taken two at a time (6C2) or 6!/4!2! = 15
| All times are GMT -7. The time now is 07:10 AM. |