Предмет: Математика, автор: karinakarina209

в повести 150 страниц первые 5 дней ученик читал ее по 18 страниц в день а затем стал читать по 20 страниц в день За сколько день он прочитал эту повесть

Ответы

Автор ответа: Deares

18*5=90
150-90=60
60:20=3

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