Sunday, March 16, 2008

Age Problem 2 Solution

Here's a non-algebraic approach to the problem:

If Bobs current age were 8 then 8 years ago he would be zero, so he has to be older than 8 or at least 9 years now. So assume 9 and 36 -- 8 years ago would make 1 and 28 which is 28 times and not what were looking for.. 10 and 40 ---- 8 years ago would make 2 and 32 which is 16 times not what were looking for... try 11 and 44-- 8 years ago would make 3 and 36-- bingo 12 times- So, Jason is 44 and Bob is 11 years old.

Algebraically we have:

x for Bobs age and

4x for Jason

So 4x = x

But 8 years ago Jason was 12 times older so

4x - 8 = 12(x-8)

4x - 8 = 12x - 96

88 = 8x

x = 11 So Bob is currently 11 years old and Jason is 4(11) or 44 years old.


  1. wow what an age difference
    anyway, thanks for the solution

  2. Many thanks for the solution...^^.. It really helps me a lot!!!!!!! Thank u Thank u Thank u Thank u Thank u Thank u Thank u

  3. lani is seven years older than her brother. Write an expression for lani's age 8 years ago.

  4. lichiee.. anghirap.. :))

  5. wow! tnx frend ur a big help

  6. Sometimes i can answer age problems correctly, but most of the time i can't. So this is a very big help for us!! Mahirap kasi eh!! :)

  7. hindi naka tulong pra sken iba kc ang solutiong kailangan ko.tnx na lng po>>:)

  8. kakaiba!! nakakahilo to dre! xD

  9. mas maganda kung gumamit siya ng table ,,, suggestion lng po ...:|

  10. Blah Blah Blah. That Sucks.

  11. mas maganda kung table yung ginamit

  12. Mary Glean B. EscuñaAugust 10, 2012 at 1:13 AM

    Thank you so much for the information that really helps me a lot


Interested in improving you brain the fun way? Check out