In Net's hair salon 42% of the customers dye their hair blond, 36% dye their eyebrows blond and 35% straighten their hair. 20% of the customers have none of these three procedures, while 12% take all of these three procedures. What percent of the customers come for exactly 2 of these three procedures?
A. 5%
B. 9%
C. 12%
D. 15%
E. 21%
The OA is B
Source: Economist GMAT
A. 5%
B. 9%
C. 12%
D. 15%
E. 21%
The OA is B
Source: Economist GMAT
