SOLUTION: Andrew is 3times as old as michael. Who is 2years older than James. If the sum of their age is 33years. How old is Andrew

Question 953808: Andrew is 3times as old as michael. Who is 2years older than James. If the sum of their age is 33years. How old is Andrew
Found 2 solutions by stanbon, josmiceli:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Andrew is 3times as old as michael. Who is 2years older than James. If the sum of their age is 33years. How old is Andrew.
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Equations:
a = 3m
m = j + 2
a + m + j = 33
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Write m and j in terms of "a"::
a + a/3 + (a/3)-2 = 33
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(5/3)a = 35
a = 21 yrs (Amdrew's age now)
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Cheers,
Stan H.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
(1)
(2)
(3)
----------------------
(2)
By substitution:
(3)
(3)
(3)
(3)
----------------
(1)
(1)
(1)
Andrew is 21
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check:
(2)
(2)
(2)
----------------
(3)
(3)
(3)
OK

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