perplexus.info :: Numbers : Age Progression

Age Progression (Posted on 2017-01-16)

Today the integer ages of brothers Alex, Bert, and Carl form an arithmetic progression.

Two months later, after Alex's birthday, the ages form a geometric progression.

Is Alex the oldest, youngest, or middle child?

No Solution Yet Submitted by Brian Smith

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| Comment 2 of 3 |

No way to tell - he may be the oldest : e.g. 16,20,24 or the youngest :

15,20,25.

If an unique answer is requested, add : all those are pre -school ages = then 1, 2 ,3 is a solution . OLDEST

Posted by Ady TZIDON on 2017-01-16 13:05:54

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