Your first winter break surprise is here! We’re publishing the seventh Brainfinity problem a bit earlier so that you could have more time to work on your answers.

Guesstimate and market sizing questions are the most popular job interview questions in the largest companies in the world. Here we have a similar task for you. Organize online gatherings and start solving the new problem.

An investor sees our region as a potential market for toothpick manufacturing. However, he’s still wondering whether to make the move and start a business. Help him make the right decision.

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Note: Download the problem here.

As per usual, send your answers to brainfinity@institut.edu.rs no later than January 18. You have the entire break to work carefully on the Brainfinity problems. Remember, the teams that solve this problem qualify for the next round – the Brainfinity challenge.

The new year is upon us. The least we can do is give our contestants a bit more fun and interesting problems, be it all virtual. Therefore, we decided to give you two problems this month.

The sixth and seventh Brainfinity problems give you a double chance to qualify for the next round, the Brainfinity Challenge. Remember that only teams that solve at least one Brainfinity problem within the deadline will qualify for the Brainfinity Challenge.

If you don’t know how to register for Brainfinity, read the rules here.

Once you have registered your team, check your inbox for your team photo which you can post on social media. You can find all team photos from this year’s Brainfinity in the gallery on our Facebook page.

Enjoy solving new Brainfinity problems. Happy holidays from everyone at Brainfinity! 🎄