PERMUTATIONS & COMBINATIONS -2
A bag contains 5 black and 6 red balls. Determine the number of ways in which 2 black and 3 red balls can be selected.
There are 5 black and 6 red balls in the bag. 2 black balls can be selected out of 5 black balls in ways and 3 red balls can be selected out of 6 red balls in ways. Thus, by Fundamental principle of counting , required number of ways of selecting 2 black and 3 red balls = ways = 1020 = 200 ways.