Mathematical Theories

ROMANCE MATHEMATICS

Smart man + smart woman = romance

Smart man + dumb woman = affair

Dumb man + smart woman = marriage

Dumb man + dumb woman = pregnancy

OFFICE ARITHMETIC

Smart boss + smart employee = profit

Smart boss + dumb employee = production

Dumb boss + smart employee = promotion

Dumb boss + dumb employee = overtime

SHOPPING MATH

A man will pay $2 for a $1 item he needs.

A woman will pay $1 for a $2 item that she doesn't need.