22 is not correct
There are 11 choices for the 1st person
There are therefore 10 choices for the 2nd person
But the order does not matter, so divide by 2
11C2 = (11*10)/(1*2) = 55
Time to review permutations and combionations
How many committees of 2 people are possible from a group of 11?
165
22**
13
55
1 answer
1 answer