Asked by Anonymous

Bob's uncle is four times as old as Bob is now. In twelve years Bob's age will be one half of his uncles age . How old are they now?
Answered by oobleck
in algebra, they have told you that
u = 4b
b+12 = 1/2 (u+12)
Now just solve
Answered by henry2,
Bob is X years old.
Bob's uncle is 4x years old.

12 years later:
x+12 = (4x+12)/2.
2x+24 = 4x+12,
X =
4x =
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