SOLUTION: The grandfather’s age is 4 years more than nine times the age of the grandson. The father’s age of 40 years is 2 years less than six times the age of his son. The age of the grandf

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Question 701115: The grandfather’s age is 4 years more than nine times the age of the grandson. The father’s age of 40 years is 2 years less than six times the age of his son. The age of the grandfather is:
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +a+ = grandfather's age now
Let +b+ = father's age now
Let +c+ = Son's age now
The Grandfather's Grandson is the Father's Son
----------------------------
given:
+f+=+40+
+40+=+6s+-+2+
+6s+=+42+
+s+=+7+
+a+=+9%2As+%2B+4+
+a+=+9%2A7+%2B+4+
+a+=+67+
The grandfather is 67