SOLUTION: A father is 6 times as old as his son.4 year's later his father will be only 4 times of his son.what are their ages

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Question 1084354: A father is 6 times as old as his son.4 year's later his father will be only 4 times of his son.what are their ages


Found 2 solutions by ikleyn, MathTherapy:
Answer by ikleyn(52798)   (Show Source): You can put this solution on YOUR website!
.
F = 6*S,             (1)    ("A father is 6 times as old as his son")
F + 4 = 4*(S+4).     (2)    ("4 year's later his father will be only 4 times of his son")


From (1), substitute F = 6*S into equation (2). You will get

6S + 4 = 4S + 16,

2S = 16-4 = 12  ---->  S =  = 6.


Thus, the son is 6 years old now.


Then the father is 6*6 = 36 years old.

Solved.


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    - Age problems and their solutions
    - A fresh formulation of a traditional age problem
    - Really intricate age word problem
    - Selected age word problems from the archive
in this site.

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Also, you have this free of charge online textbook in ALGEBRA-I in this site
    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.

The referred lessons are the part of this online textbook under the topic "Age word problems".



Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!

A father is 6 times as old as his son.4 year's later his father will be only 4 times of his son.what are their ages
 

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