IOM 2016, Блиц — Задача 11

Olympiad of Metropolises, Moscow. Blitz Contest, September, 5 · 5 септември 2016 г.

Условие

The answer should be given in SI-units and rounded to the nearest integer, unless otherwise is stated. $g = 10$ m/s$^2$.

An airplane flies against the wind from $A$ to $B$ in 8 hours. The same airplane returns from $B$ to $A$, in the same direction as the wind, in 7 hours. Find the ratio of the speed of the airplane (in still air) to the speed of the wind.

Решение

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Оригинал в Архива: blitz.pdf