SOLUTION: you were 4 years old,your sister was 3 times your age,now that your are 12 years old,how old is your sister

SOLUTION: you were 4 years old,your sister was 3 times your age,now that your are 12 years old,how old is your sister

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Question 705325: you were 4 years old,your sister was 3 times your age,now that your are 12 years old,how old is your sister
Answer by Stitch(470) (Show Source): You can put this solution on YOUR website!
When you were 4, your sister was three times your age.
4*3 = 12
When you were 4 your sister was 12.
Now you are 12.
12-4 = 8
Add 8 to your sister's past age
12 + 8 = 20
Now that you are 12, your sister is 20
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