Problem #PRU-31072

Problems Algebraic equations and systems of equations Algebra Higher order equations. Palindromic polynomial equations Equations of higher order (other) Real numbers Integer and fractional parts. Archimedean property Calculus
 12–14  2.0

Problem

In some country 89 roads emerge from the capital, from the city of Dalny – one road, from the remaining 1988 cities – 20 roads (in each).

Prove that from the capital you can drive to Dalny.