SOLUTION: Joshua is 12 years old and his sister is three times as old as he. When Joshua is 23 years old, how old will his sister be?

Question 599747: Joshua is 12 years old and his sister is three times as old as he. When Joshua is 23 years old, how old will his sister be?
Found 2 solutions by lynnlo, Alan3354:
Answer by lynnlo(4176) (Show Source): You can put this solution on YOUR website!
ANSWER: HIS SISTER WILL BE 69 YEARS OLD,BECAUSE YOU MULITPLY
23X3=69
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Joshua is 12 years old and his sister is three times as old as he. When Joshua is 23 years old, how old will his sister be?
J is 12
S is 36
-----
Add 11
S is 47

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