Mom and dad have four daughters, and each daughter has one brother. how many people are in the family?
this is actual homework so don't answer if you're gonna say "this isn't an actual question", 'cause it is.

Four individuals pool money together to start a new business and agree to split the profits equally. n invests $6,000, x invests $2,000, y invests $8,000 and z invests $4,000. if the profits for the first month were $100,000, y receives than if the profits were divided in proportion to how much they invested.