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## 'Score' printed from http://nrich.maths.org/

There are exactly 3 ways to add 4 odd numbers to get 10.
Re-arranging the order of the numbers does not give a new solution.
Find all the ways of adding 8 odd numbers to get 20. To be sure of
getting all the solutions you will need to be systematic. What
about a total of 15 with 6 odd numbers?