Question 174469: the sum of ages of two brothers is 24 in three years time, the elder brother will be twice as old as younger. how old are they ?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! the sum of ages of two brothers is 24.
a + b = 24
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in three years time, the elder brother will be twice as old as younger.
(a+3) = 2(b+3)
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how old are they ?
EQUATIONS Rearranged
a + b = 24
a -2b = 3
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Subtract the 2nd from the 1st to get:
3b = 21
b = 7 yrs. old (Younger brother's age)
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Since a + b = 24 , a = 24-7 = 17 yrs. old (older brother's age)
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Cheers,
Stan H.
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