TOT 184 1988 Autumn Train J1 people with fair hair , with blue eyes
Source:
May 20, 2020
algebra
Problem Statement
It is known that the proportion of people with fair hair among people with blue eyes is more than the proportion of people with fair hair among all people. Which is greater , the proportion of people with blue eyes among people with fair hair, or the proportion of people with blue eyes among all people? (Folklore)