DAY 154

Today’s Challenge

From the following list of twenty numbers:

3    4    7    10    11    15    16    17    24    27    30    32    36    48    49    54    56    64    72    80

eliminate all square numbers, multiples of 8, factors of 60 and prime numbers.

What is the sum of the TWO numbers that remain?

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The 7puzzle Challenge

The playing board of the 7puzzle game is a 7-by-7 grid of 49 different numbers, ranging from up to 84.

The 3rd & 7th rows contain the following fourteen numbers:

4     11     13     24     25     27     30     36     42     45     66     70     77     80

How many even numbers, when halved, become odd?

.

Answers

. . . can be found when clicking this.

7puzzleblog

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