Question 55
In a group of $108$ people, $1$ in $4$ of them has a pen and $1$ in $3$ has a pencil. What is the minimum possible number of people that have something to write with?
MathNet 2015-part-06 — 191 problems (EN–VI) Question 55
Math Olympiad Vault · MathNet 2015-part-06 — 191 problems (EN–VI)