Today’s Challenge
A palindromic number is a number that can be read the same forwards and backwards (e.g. 333 and 797). How many palindromic numbers are there between 100 and 1,000?
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The 7puzzle Challenge
The playing board of the 7puzzle game is a 7-by-7 grid containing 49 different numbers, ranging from 2 up to 84.
The 1st & 7th rows of the playing board contain the following fourteen numbers:
2 4 9 11 14 15 22 24 27 30 40 70 72 77
What is the sum of the multiples of 9?
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Answers
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