IOM 2017, Блиц — Задача 48

OLYMPIAD OF METROPOLISES. Moscow, September 4 · 4 септември 2017 г.

Условие

On a ring road there are four gas stations: A, B, C and D. The distance between A and B is 75 km, between A and C — 50 km, between C and D — 40 km, between D and A - 60 km. Find the distance between B and C. (The distances are measured in the shorter direction along the road.)

Отговори

Решение

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Оригинал в Архива: blitz.pdf · официални решения: answers-blitz.pdf