Предмет: Математика, автор: Аноним

для приготовления чайной смеси смешивают 9 частей индийского чая и 11 цейлонского чая.Сколько грамм индийского чая надо взять,чтобы получить 400 г чайной смеси.

Ответы

Автор ответа: vmaluga2011

911=20 (частей) всего
400:20=20 (г) 1 часть
20*9=180 (г)
Ответ: 180 г индийского чая надо взять для 400 г смеси

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