Question 1091113: Stan says my niece is currently 1/3 of my age. But In 12 years old she will be 1/2 of my age how old is stan now Found 2 solutions by josmiceli, MathTherapy:Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = Stan's age now
Let = niece's age now
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(1)
(2)
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(1)
(2)
(2)
(2)
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Plug (1) into (2)
(2)
(2)
and
(1)
(1)
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Stan is 36 now
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check:
(2)
(2)
(2)
(2)
OK
You can put this solution on YOUR website!
Stan says my niece is currently 1/3 of my age. But In 12 years old she will be 1/2 of my age how old is stan now
Let Stan's age be S
Then niece's is:
We then get:
2S + 72 = 3S + 36 ------- Multiplying by LCD, 6
2S - 3S = 36 - 72
- S = - 36
S, or Stan is:
