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Results tagged with calculation-puzzle
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user 19625
A puzzle that involves numerical calculations, such as multiplication and addition. Use with the [mathematics] tag.
2
votes
A mystery partition of 100
My approach is a parity observation, and is helped by the fact that it is a multiset. Otherwise it would be a bit time consuming.
So, among 10 numbers, there can be ${10 \choose 2}=45$ pairs, that is …
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