Can you tell me my age in years?

1,334.8K Views

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?

Share
Add Comment

  • 1 Answer(s)

    The first equation (365g = 52s) can be approximated by
    7g = s.

    As before, the other two equations are
    12g = m
    g + s + m = 140.

    The above system of 3 equations in 3 unknowns (g, s and m) can be simply solved as follows.
    g + 7g + 12g = 140 or 20g = 140.
    m = 12g = 12 × 140 / 20 = 84.

    So, Grandpa is 84 years old.

    anikam Expert Answered on 24th August 2015.
    Add Comment
  • Your Answer

    By posting your answer, you agree to the privacy policy and terms of service.
  • More puzzles to try-