Cheryl’s Birthday – That Viral Maths Problem

Last week, a mathematics problem posed to Singapore students went viral. It’s been termed “Cheryl’s Birthday”, and the above video by Numberphile explains the problem, and gives the solution. It’s an incredibly clever logic puzzle, which only a few people will be able to deduce. The wording can be a little odd, meaning it is possible to get a different answer.

Did you manage to solve it? Onwards!

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