Предмет: Математика, автор: zereshkasmile

«Сколько Вам лет, отец?» Отец Сын спрашивает отца: отвечает: «Если к моему возрасту прибавишь его половину, его четверть и еще 1, то получишь 134». Сколько лет отцу? 634. Старинная задача.​

Ответы

Автор ответа: wetygau
1

Ответ:

Пусть отцу х (икс) лет, тогда половина его возраста – 0,5 • х, а четверть его возраста – 0,25 • х. Зная, что сумма его возраста, указанных долей и 1 равна числу 134, составим уравнение:

х + 0,5 • х + 0,25 • х + 1 = 134

1,75 • х = 134 – 1

х = 133 : 1,75

х = 76 (лет)

Проверка: 76 + 0,5 • 76 + 0,25 • 76 + 1 =134

Ответ: отцу – 76 лет.

Автор ответа: leprekon882
0

Отец ответил, что его возраст равен 134. Чтобы найти возраст отца, нужно решить уравнение:

x + x/2 + x/4 + 1 = 134, где х - возраст отца

Для этого можно начать с умножения всех слагаемых на 4:

4x + 2x + x + 4 = 536

Затем следует сложить все слагаемые:

7x = 532

Делением на 7 можно найти ответ:

x = 76

Таким образом, отцу 76 лет.

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