Предмет: Математика, автор: kaleksev1

У мистера Фокса есть 18 камней: 17 из них весят одинаково, а один легче остальных, хотя на вид такой же, как остальные. Вес всех камней — натуральные числа. Их суммарный вес 268. Мистер Фокс потерял два камня и теперь вес оставшихся камней 238. Сколько весит легкий камень?

Ответы

Автор ответа: Dark0warrior

268-238=30(в) весит 2 камня
30÷2=15(в) 1 камень
15×17=255(в)весит одинаковые камни
268-255=13(в)
ответ:лёгкий камень весит 13

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