IMC 2000 — Keystage 3 (IWYMIC) — individual Question 10

On the Celsius scale, water freezes at $0^\circ$ and boils at $100^\circ$. On the Sulesic scale, it freezes at $20^\circ$ and boils at $160^\circ$. Find the Sulesic temperature corresponding to $215^\circ$ Celsius.