Problem #WSP-000433

Problems Mathematical logic

Problem

Michelle and Robbie ask Uri his age, while they’re all on a bus - instead of just answering them, Uri gives them a puzzle. Uri says that he has two younger brothers, and the product of all of our ages (in whole numbers) is \(144\).

Michelle replies that this is nowhere near enough information.

Then Uri says “Well, the sum of our ages is the bus number."

Robbie says “That narrows things down a bit, but I still don’t know how old you are."

Uri says “Oh I forgot to say! My brothers are twins."

Michelle and Robbie say “ we know." How old is Uri?