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受欢迎的 Word Problems >

Alex is a quarter the age of Jenny. In 4 years time, Jenny will be 3 times the age of Alex.How old is Jenny now?

解答

A l e x i s a q u a r t er t h e a g e o f J e nn y . I n 4 ye a rs t im e, J e nn y w i ll b e 3 t im es t h e a g e o f A l e x . Ho w o l d i s J e nn y n o w ?

解答

Jenny^{'} s age is : 32

求解步骤

Translate the problem into an equation:

x + 4 = 3 (\frac{1}{4} x + 4)

求解

x, x + 4 = 3 (\frac{1}{4} x + 4) : x = 32

Jenny^{'} s age is : 32

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