Предмет: Математика, автор: Илья1232001

Задача. Музыкальная коллекция меломана состоит из 460 компакт-дисков. Классическая музыка составляет 40% коллекции, джаз 25 %,остальные диски-фольклор в совр. музыкальной обработке. Найдите кол-во пластинок каждого жанра.

Ответы

Автор ответа: UshkOo

460:100*40=184 пластинки это классика
460:100*25.=115 пластинок это джаз
460-(184+115)=161 пластинка это фольклор

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