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人気のある Word Problems >

A father is 7 times old as his son. Two years ago, the father was 13 times as old as his son. What are thir preasent age?

解

A f a t h er i s 7 t im es o l d a s hi s so n . Tw o ye a rs a g o, t h e f a t h er w a s 13 t im es a s o l d a s hi s so n . Wha t a re t hi r p re a se n t a g e ?

解

Boy^{'} s age is : 4

Father^{'} s age is : 28

解答ステップ

Translate the problem into an equation:

7 x - 2 = 13 (x - 2)

x

を解く

7 x - 2 = 13 (x - 2) : x = 4

発見する age

Boy^{'} s age is : 4

Father^{'} s age is : 28

人気の例

Kevin is 3 times as old as Daniel. 4 years ago kevin is 5 times as old as daniel Mary is 32 years old. THe sum of the ages of Mary and Miguel is 49. How old is Miguel?Tom's present age is twice Sue's present age. Two years ago, Tom was three times as old as Sue was then. Find their presents ages.13 years from now Steven will be twice as old as Maria. The current sum of the ages of Steven and Maria is 34. How old is Maria right now?13 years from now Steven will be twice as old as Maria. The current sum of the ages of Steven and Maria is 28. How old is Maria right now?