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3 years ago

Abby is half as old as her dad and as twice as old as her brother. if her brother is 9 years old how old is her dad?

2 answers:

6 0

Let Abby's father's age be x.
Then Abby's age = 1/2 x or her father's age= 2* Abby's age
Abby's brother's age = 9 years
So, Abby's age= 2*9= 18 years
∴ her father's age = 2*18 =36 years

ExtremeBDS [4]3 years ago

4 0

A=D/2
A=2B
B=9
A=2 (9)
A=18
18=D/2
*2 both sides
D=36

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Step-by-step explanation:

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