Thursday 16 April 2015

The Cheryl's Birthday problem and others

The 'Cheryl's Birthday' maths test for the top 15/16 year olds in Singapore - can you solve it?

Here is a link to the problem that's taken the world by storm and a video on how to solve it.

For the 'What colour hat am I wearing' puzzle - click here.

Two students arrange to meet - both thought they had arrived at the correct time, but one was 29 minutes late - how come? Click here.

Want some more? Click here.

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