Предмет: Математика, автор: 2773638281910

5 насосов наполняют бассейн за 16 часов.За сколько эту же работу сделают 4 насоса

cojevnikovatani: это за какой класс ?

2773638281910: за шестой

Ответы

Автор ответа: GlebGor1998

1

х - объем бассейна
Если производительность всех насосов одинакова , то производительность одного насоса равна : х /5 * 16 = х/80
4 насоса смогут наполнить бассейн за : х / 4* х/80 = х / х/20 = 20 час

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