DAY 121:

Today’s Challenge

Read the following facts below about a particular number:

  • I am a 2-digit even number,
  • When my two digits are added together, they make another 2-digit even number that is also a square number.

Which number am I?


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

What is the sum of the multiples of 11?



. . . can be found when clicking this.


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