Browse Teasers
Search Teasers

## Three generations

Math brain teasers require computations to solve.

 Puzzle ID: #270 Fun: (2.51) Difficulty: (1.82) Category: Math Submitted By: Phyllis

Grandpa Jones says:
`My son Adam is 24 years younger than me and 35 years older than my grandson, Joey. Together our total ages add up to 100.` Can you figure out the age of each one of them?

## What Next?

See another brain teaser just like this one...

Or, just get a random brain teaser

If you become a registered user you can vote on this brain teaser, keep track of
which ones you have seen, and even make your own.

 Dave_13 Dec 10, 2002 That was boring! Sane Mar 13, 2005 TOO MANY WORDS! *head explodes* stewie82 Nov 17, 2005 I used the equations: (A) Grandpa = Adam + 24 (B) Adam = Joey + 35 (C) Grandpa + Adam + Joey = 100 then substitued so I was workng with "Joey"s (Grandpa = Joey + 24 + 35; Grandpa = Joey + 59) so then equation (C) is: (Joey + 59) + (Joey + 35) + Joey = 100 simplifies to: 3Joey + 94 = 100 3Joey = 6 Joey = 2 since Joey = 2 (B) Adam = 35 + 2 Adam = 37 (A) Grandpa = 24 + 37 Grandpa = 61 confirm: Grandpa + Adam + Joey = 100 61 + 37 + 2 = 100 100 = 100 ... um, yeah all my friends are math majors, I guess it rubbed off on me great teaser hidentreasure Nov 27, 2005 Fun teaser. I like math. hidentreasure Nov 27, 2005 Wow you found an other anwer! I think. hidentreasure Nov 27, 2005 Never mind the last coment. musicmaker21113 Jan 09, 2006 Good teaser! Fairly straightforward, but fun. SPUTNIK2 Jan 13, 2006 fun teaser, thanks! vancon Feb 11, 2006 That was fun and great for those of us whose forte isn't math (though we keep trying). Thanks for a nice teaser! tca2 May 04, 2006 Fun, Easy, But Fun. horse_luver Jun 16, 2006 I did the same thing as Stewie. Easy, but cute. Subtox Mar 15, 2007 This worked for me: Let 'a' equal Adam's age. a + (a - 35) + (a + 24) = 100 3a - 11 = 100 3a = 111 a = 37 So Adam is 37, Gramps is 37 + 24, or 61, and Joey is 37 - 35, or 2.