Предмет: Математика, автор: юлечка54

В классе на 20% больше чем девочек.

Ответы

Автор ответа: prettypushkova

100% - все ученики в классе
(100% - 20%) : 2 = 80% : 2 = 40% - девочки
40% + 20% = 60% - мальчики
Ответ: в классе 60% мальчиков и 40% девочек.

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