Предмет: Математика, автор: Неизвестная1020

Коля начал работу в 17 ч 40 мин. и затратил на нее 7/12 часа . Когда он ее завершил?

Ответы

Автор ответа: Kirasirov03

1 час=60 минут
60 делим на 12 получается 5
5 умножаем на 7 получается 35 минут
17 часов 40 минут плюс 35 минут равно 18 часов 15 минут
в 18 часов 15 минут он завершил работу

Неизвестная1020: а можно по действиям? И с объяснениями

Автор ответа: oleloy81

60:12*7=35 минут он затратил
17 часов 40 минут+35 минут= в 18 часов 15 минут он закончил работу

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