SOLUTION: curently the father is 4 times older than his daughter in 8 years he will be 3 times as old as her. how old is the daughter now?

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Question 161762: curently the father is 4 times older than his daughter in 8 years he will be 3 times as old as her. how old is the daughter now?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let f= Father's age now
Let d= Daughter's age now
(1)f+=+4d
f+%2B+8+=+3%2A%28d+%2B+8%29
f+%2B+8+=+3d+%2B+24
(2)f+=+3d+%2B+16
Set (1) and (2) equal to eachother
4d+=+3d+%2B+16
d+=+16
f+=+4d
f+=+4%2A16
f+=+64
The Daughter is 16
check:
f+%2B+8+=+3%2A%28d+%2B+8%29
64+%2B+8+=+3%2A%2816+%2B+8%29
72+=+3%2A24
72+=+72
OK