Secondary Live Problems

Each time you visit the NRICH site there will be some activities which are 'live'. That means we are inviting you to send us your solutions and we will publish a selection of them, along with your name and your school's name. If you'd like to know more about what we're looking for, read this short article.

The last day for sending in solutions to our live problems is Thursday 8 July.

Olympic Recordslive

Age 11 to 14
Challenge Level

Can you deduce which Olympic athletics events are represented by the graphs?

Last Biscuitlive

Age 11 to 18
Challenge Level

Can you find a strategy that ensures you get to take the last biscuit in this game?

Crossing the Bridgelive

Age 11 to 18
Challenge Level

Four friends must cross a bridge. How can they all cross it in just 17 minutes?

Secondary Toughnutslive

Age 11 to 18
Challenge Level

These secondary problems have not yet been solved. Can you be the first?