Предмет: Математика, автор: jokerfedor

Заасфальтировали 83% дороги после, чего осталось заасфальтировать 51 км. Найдите длину всей дороги.

Ответы

Автор ответа: prettypushkova

Длина всей дороги 100%

1) 100% - 83% = 17% - осталось заасфальтировать;
2) 17% = 51 км. Находим целое по его части:
51 : 17 * 100 = 300 (км) - длина всей дороги.
Ответ: 300 км.

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