|
Re: A complete guide to Permutation, Combination and Probability. All you need for GMAT
Total Students = Sailing Club + Wine Club - Both
400 = (Sailing Club) + 200 - 50
Sailing Club = 250
Probability of choosing someone who is in the sailing club
= (Sailing Club) / (Total)
= 250 / 400
= 5/8
B
|