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December Week 1
The Tiling Challenge
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December Week 2
Finding the real gold bar!
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December Week 3
Challenge 5: 2 Weighing Scales
You can now use 2 weighing scales together at once. It takes 1 minute for a scale to weigh, you will be able to measure faster now using both balances at once.
You have 10 bars now. How much time would you need to find the original gold bar?