SOLUTION: John, twelve years old, is three times as old as his brother. How old will John be when he is twice as old as his brother?
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Question 9084: John, twelve years old, is three times as old as his brother. How old will John be when he is twice as old as his brother?
Answer by bonster(299) (Show Source): You can put this solution on YOUR website!
12=3x
x=4
his brother is 4 years old right now.
4 and 12
5 and 13
6 and 14
7 and 15
8 and 16
since 8 is half of 16, John will be 16 when he is twice as old as his brother.
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