Secondary Students' Solutions
Take a look at these recently solved problems.
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When you visit the NRICH site you may find some activities which are 'live'. This means we are inviting students to send us solutions, and we will publish a selection of them, along with each student's name and their school, a few weeks later. If you'd like to know more about what we're looking for, read this short article.
Over the summer break, instead of live problems, we are offering a selection of Maths at Home challenges, which are ideal for working on with friends or relatives. We hope you enjoy thinking mathematically at home.
problem
Crossing the bridge
Age
11 to 18
Challenge level
Four friends must cross a bridge. How can they all cross it in just 17 minutes?