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인기 있는 Word Problems >

Five years ago I was five times my son's age. In 8 years I will be 3 times by son's age.

해법

F i v e ye a rs a g o I w a s f i v e t im es m y so n^{'} s a g e . I n 8 ye a rs I w i ll b e 3 t im es b y so n^{'} s a g e .

해법

my age is : 70

Son^{'} s age is : 18

솔루션 단계

Translate the problem into an equation:

x - 5 = 5 (y - 5), x + 8 = 3 (y + 8)

x - 5 = 5 (y - 5), x + 8 = 3 (y + 8) : x = 70, y = 18

my age is : 70

Son^{'} s age is : 18

인기 있는 예

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