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В селе Капелюшки 250 домов. В некоторых домах по одной кошке, в половине остальных домовдве кошки, а в оставшихся домах нет кошек. Сколько всего кошек живет в домах села Капелюшки?
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Предмет:
Математика -
Автор:
consueloruiz - 5 лет назад
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Ответы 1
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Пусть в селе 2x домов, в которых есть одна кошка. Тогда в (250-2x)/2=125-x домах две кошки, а в остальных кошек нет. Значит, кошек всего 2x+2*(125-x)=2x+250-2x=250.
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Автор:
tannere89h - 5 лет назад
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