SOLUTION: My son is seven times older than my grandson and I am 12 times older than my grandson. If you add all our ages together, the sum is 100 years. Can you tell me my age in years?
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Question 318329: My son is seven times older than my grandson and I am 12 times older than my grandson. If you add all our ages together, the sum is 100 years. Can you tell me my age in years?
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Let 
represent the grandson's age. Then 
is the father's age and 
is the grandfather's age.
The sum:
Solve for then multiply by 12.
John
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