SOLUTION: Father is 3 times as old as his daughters age.In 12 years father will be 1 year less than twice his daugthers age.What is their age?
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Question 471801: Father is 3 times as old as his daughters age.In 12 years father will be 1 year less than twice his daugthers age.What is their age?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Father is 3 times as old as his daughters age.In 12 years father will be 1 year less than twice his daugthers age.What is their age?
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Equations:
f = 3d
f+12 = 2(d+12)-1
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Substitute for "f" and solve for "d":
3d+12 = 2d+23
d = 11 (daughter's age now)
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Solve for "f":
f + 3d
f = 33 (father's age now)
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Cheers,
Stan H.
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