SOLUTION: Grace to her cousin�s age is 4 : 5. 6 years later, the ratio will be 11 : 13.Find Grace�s age.

Question 861331: Grace to her cousin�s age is 4 : 5. 6 years later, the ratio will be 11 : 13.Find Grace�s age.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = graces age now
Let = cousin's age now
---------------------------
(1)
(2)
-------------------------------
(2)
(2)
(2)
----------------------
(1)
(1)
-------------------
Substitute (1) into (2)
(2)
(2)
(2)
(2)
and
(1)
(1)
Grace is 16
check:
(2)
(2)
(2)
(2)
OK

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