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Counting - Two category

SOURCE:GMAT
Number of Problems: 3.
FOR PRINT ::: (Book)

Problem Num : 1
Type:
Topic:Counting 
Theme:None
Adjustment# : 0
Difficulty: 1

Category Two category
Analysis There is no common between Men and Women There is no common between section 1 and section 2
Solution/Hint 2/3 *(s1)+1/2 *(s2) = female
(s1)+(s2) = 84


Problem Num : 2
Type:
Topic:Counting 
Theme:None
Adjustment# : 0
Difficulty: 1

Category Two category
Analysis There are two categories but no common
Solution/Hint


Problem Num : 3
Type:
Topic:Counting 
Theme:None
Adjustment# : 0
Difficulty: 1

Category Two category
Analysis We need to know the total number of peoples.
Solution/Hint Men and Woman doesn't have any common.
Red and Non Red doesn't have any common.