Find the sum of the numbers that remain after eliminating all multiples of 3, 5 and 7 from all odd numbers between 10 and 40.
Also, do you notice anything in particular about these remaining numbers?
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 2nd & 6th rows of the playing board contain the following fourteen numbers:
5 8 12 17 18 20 28 33 48 49 55 56 63 64
From the list, which three different numbers have a sum of 100?
Answers can be found here.
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