Предмет: Математика, автор: fa26

. Три девочки Аня, Вера, Ира решали задачи. Чтобы узнать, кто из них лучшая, они купили конфеты и договорились: если задачу решаешь первой – получаешь 4 конфеты; если второй – 2 конфеты; если последней – 1 конфету. Девочки утверждают, что каждая решила все задачи и получила 20 конфет (одновременных решений не было). Правы ли девочки? Объясните ответ.
ПОМОГИТЕ ПОЖАЛУЙСТА !!!!!!!!!!!

Ответы

Автор ответа: sorru66
0
Нет
Решение:
4+2+1+4+2+1+4+2+1=21, а у нас 21!
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