SOLUTION: A boy is 8 years old and his sister is twice his age if the boy turn 12 years old how old would his sister be

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Question 973912: A boy is 8 years old and his sister is twice his age if the boy turn 12 years old how old would his sister be
Answer by addingup(3677) About Me  (Show Source):
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The sister is twice the boy's age and the boy is 8.
The sister is 2 times the boy's age, the sister is:
2*8= 16 When the boy turns 12 the sister will be:
2*12= 24