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Популярное Word Problems >

Jonathan is now three times as old as his son is. Twelve years ago, he was six times as old as his son was. Find the present age of each.

Решение

J o na t han i s n o w t h ree t im es a s o l d a s hi s so n i s . Tw e l v e ye a rs a g o, h e w a s s i x t im es a s o l d a s hi s so n w a s . F in d t h e p rese n t a g e o f e a c h .

Решение

Son^{'} s age is : 20

Jonathan^{'} s age is : 60

Шаги решения

Translate the problem into an equation:

3 x - 12 = 6 (x - 12)

Решите для

x, 3 x - 12 = 6 (x - 12) : x = 20

Найдите age

Son^{'} s age is : 20

Jonathan^{'} s age is : 60

Популярные примеры

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