Question

Of 80 adult, 35 on happy25 are sad and 20 are neitherhappy nor sad . There are 30and 50 women. It there are16 happy men and 14 Sadwomen how many men are neitherhappy nor sad ???​

Answer 1

Answer:

Venn diagrams are useful for multiple values of a single variable e.g. State of mind - happy/sad/neither. When you have two or more variables such as here where you have gender - boy/girl too, it becomes unwieldy. In this case, either use the table or logic.