Question 795809: Ann is 2 years older than Mary. Last year Ann was 3 times as old as Mary. How
old is Ann now? Found 2 solutions by stanbon, harpazo:Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Ann is 2 years older than Mary. Last year Ann was 3 times as old as Mary. How
old is Ann now?
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Equations:
a = m + 2
a-1 = 3(m-1)
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Substitute for "a" and solve for "m":
m+2-1 = 3m-3
2m = 4
m = 2 yrs (Mary's age now)
a = m+2 = 4 yrs (Ann's age now)
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Cheers,
Stan H.
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You can put this solution on YOUR website! Ann's current age is x + 2.
Jenny's current age is x.
x+2-1 = 3x-1
x+1 = 3x-1
x-3x = -1-1
-2x = -2
x = -2/-2
x = 1
Ann is 1 + 2 or 3 years old.
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