Предмет: Математика, автор: aysenust

В гараже стоят 750 автомобилей. Грузовые автомобили имеют по 6 колёс, а легкавые - по 4 колеса. Сколько и каких автомобилей в гараже, если колёс всего 3024


Аноним: Складываешь колеса легковой и грузовой 6+4=10. Делишь 3024:10=302 (4 в остатке). Остаток можно посчитать как одну легковую. Получилось 303 легковых и 302 грузовых

Ответы

Автор ответа: Fashion004
1
Решение:
Представим, что у всех автомобилей по 4 колеса, тогда их было бы 750*4=3000 колес.
Но их 3024, то есть на 3000-3024=24 колеса больше. Эти 24 колеса принадлежат грузовым автомобилям, у которых по 6 колес (то есть по 2 "лишних" колеса каждого автомобиля).
24:2=12 - грузовых автомобилей в гараже.
750 - 12 = 738 - легковых автомобилей.
Сделаем проверку, подсчитаем все колеса:
738*4 + 12*6 = 2952+72= 3024 колеса - что и соответствует условию задачи.
Ответ: в гараже 738 легковых автомобилей и 12 грузовых.

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