The age of the father is twice the sum of the ages of his two children. After 20 yr, his age will be
Автор: Doubtnut
Загружено: 2020-01-18
Просмотров: 7637
Описание: The age of the father is twice the sum of the ages of his two children. After 20 yr, his age will be equal to the sum of the ages of his children. Find the age of the father.
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