Question

What is the total number of members learning singing?

• A. 21
• B. 13
• C. 18
• D. 15
• E. None of these

Answer 1

The correct option is E None of these

Number of men in the building $=80$
Number of women $=\frac{80\times 62.5}{100}=50$
Men who learn to dance $=8$
Women who learn to sing $=\frac{50\times 24}{100}=12$
Women who watch movies $=50\times \frac{1}{5}=10$
Men who match movies $=\frac{13}{2}\times 10=65$
Men who learn to sing $=80-65-8=7$
Women who learn to dance $=50-10-12=28$
Number of members who learn singing $=12+7=19$