Предмет: Математика, автор: рита202

решите пж задачу номер11.Очень прошу

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Ответы

Автор ответа: лина003
0

1 год = 12 месяцев

91*12=1092 месяцев в 91 годах

х месяцев внучке

12х лет деду

х+12х=1092

13х=1092

х=84 месяцев внучке и лет деду

 84/12=7 лет внучке

ответ деду 84 года

         внучке 7 лет 

Автор ответа: рита202
0
а можно както по другому это задача за 3класс
Автор ответа: лина003
0
думаю можно, но я могу только так
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