Question

Zoe is thrice as old as her daughter. After 10 years she will be double the age of her daughter. What are this ages now
7&21
10&30
12&36
15&45

Answer 1

Answer:

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Answer 2

Answer:

let age of daughter be x

then Zoe's age=3x

10 years later

daughter=x+10

Zoe=3x+10

2(x+10)=3x+10

2x+20=3x+10

x=10

3x=3*10=30

so ages are 10&30

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