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My Age Puzzle

My Age Puzzle - 17 November

My grandson is about as many days as my son is weeks, and my grandson is as many months as I am in years. My grandson, my son and I together are 140 years. Can you tell me my age in years?

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9 comments:

  1. Grandson is 7, son is 49, you're 84.

    Grandson in days as old as son is in weeks just means your son's age is 7 times your grandson's age. Similarly, you are 12 times older than your grandson (grandson in months as old as you are in years).

    x + 7x + 12x = 140; x = 7; 7x = 49; 12x = 84.

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  2. How do you know that the person who is being spoken of is in fact a grandfather? Could not the grandparent be the grandmother?

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