SOLUTION: Jerry is 6 years older than his friend George. Their other friend Kramer is 9 years younger then George. The sum of all their ages is 93 years. How old are the 3 friends?

Question 1059670: Jerry is 6 years older than his friend George. Their other friend Kramer is 9 years younger then George. The sum of all their ages is 93 years. How old are the 3 friends?

Found 3 solutions by josmiceli, rfer, stanbon:
Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!
Let = Jerry's age now
Let = George's age now
Let = Kramer's age now
-------------------------------
(1)
(2)
(3)
-------------------------------
Substitute (1) and (2) into (3)
(3)
(3)
(3)
(3)
and
(1)
(1)
and
(2)
(2)
------------------------
Jerry is 38
George is 32
Kramer is 23
----------------
check:
(3)
(3)
(3)
OK

Answer by rfer(16322)   (Show Source): You can put this solution on YOUR website!
Jerry = x+6
George= x
Kramer= x-9
x+6+x+x-9=93
3x-3=93
3x=93+3
x=96/3
x=32
x+6=38
x-9=23
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
Jerry is 6 years older than his friend George. Their other friend Kramer is 9 years younger then George. The sum of all their ages is 93 years. How old are the 3 friends?
--------------------
J = G + 6
K = G - 9
J + G + K = 93
-----------------------
G+6 + G + G-9 = 93
3G - 3 = 93
3G = 96
G = 32 yrs
------
J = G + 6 = 38 yrs
K = G - 9 = 23 yrs
---------------------
Cheers,
Stan H.
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