DAY 59:

Today’s Challenge

Your starting number is 18 and your task is to arrive at the same final answer.  There are ten arithmetical steps from beginning to end, each one involving a whole number, but the 9th, and penultimate, step is missing!  What should it be?

÷2     +3     –8     ×6     +4     –3     ÷5     ×2     ?     ×2     =     18

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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 4th & 6th rows contain the following fourteen numbers:

3     5     10     12     18     20     32     33     35     44     49     54     56     60

What is the difference between the lowest and highest multiples of 4?

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Answers

. . . can be found when clicking this.

7puzzleblog

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