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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