DAY 343:

Today’s Challenge

. . . sees another posting of this popular question where you follow the rules and eliminate every number, except one.

From the numbers 1-50, eliminate:

  • numbers containing a 1, 3, 5 or 7
  • even numbers
  • square numbers

There is just one number left, which one?

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 3rd & 5th columns of the playing board contain the following fourteen numbers:

4    8    11    12    14    15    17    18    25    35    44    80    81    84

What is the difference between the highest multiples of 8 and 9?

Make 343 Challenge

Can you arrive at 343 by inserting 1, 2, 3, 4 and 5 into the gaps below?

[(◯×◯×◯)–(◯×◯)]³ = 343

Answers can be found here.

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