Did you solve it? The numbers all go to 11
by Alex Bellos from Science | The Guardian on (#7398P)
The answers to today's problems
Earlier today I set you these three problems about the number 11. Here they are again with solutions.
1. Funny formation
odd positions: 9,7,5,3,1 sum to 25;
even positions: 8,6,4,2,0 sum to 20.
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