Question 669824
 Brad is half the age of his father, who is 3 times the age of his niece Imelda. How old is Brad when the three's combined age in years is that of Brad's 88 year old grandmother? 
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Equations:
b = (1/2)f
f = 3n
b + f + n = 88
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Substitute for b and n and solve for "f":
(1/2)f + f + (1/3)f = 88
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3f + 6f + 2f = 6*88
11f = 6*88
f = 6*8 = 48 yrs (father's age)
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b = (1/2)f = 24 yrs (brad's age)
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n = (1/3)f = 16 yrs (niece's age)
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Cheers,
Stan H.
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