Предмет: Математика, автор: markobelok

Один насос за 7 хв викачує 161 л води, а
другий за 5 хв – 95 л води. Скільки часу буде
витрачено на викачування 168 л вод в разі
спільної роботи обох насосів ?

Ответы

Автор ответа: martarsvdhx
2

Ответ:

чуэш, цей якщо тобі треба не срочно то я зможу написати відповідь через2-3 год

mandarinkavika01: вхвх , я угараю
martarsvdhx: пон
martarsvdhx: бо я в школі тоді була(
martarsvdhx: потім вже чел відповідь написав(
Автор ответа: gigatron
10
1)161:7=23(л)-за 1 хв викачує 1 насос
2)95:5=19(л)-за 1 хв викачує 2 насос
3)168:(19+23)=4(хв)
Думає що це правильно
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