DAY 123:

Today’s Challenge

Follow the rules and eliminate numbers from a given list, except one.  From the numbers 1-30 inclusive, delete:

  • multiples of 5
  • factors of 36
  • numbers containing a ‘7’
  • prime numbers
  • even numbers

Which is the only number that remains?

The 7puzzle Challenge

The playing board of the 7puzzle game is a 7-by-7 grid containing 49 different numbers, ranging from 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

Which three different numbers on the list have a sum of 100?

Make 123 Challenge

Can you arrive at 123 by inserting 3, 9, 10 and 12 into the gaps on each line?

  •  ◯×◯+◯÷◯ = 123
  •  ◯×◯+half(◯×◯) = 123
  •  (◯+◯)×◯+half◯ = 123

Answers can be found here.

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