DAY 89:

Today’s Challenge

Start with the number 7.  To this add 0.5, then add 1, then to that answer add 1.5, then 2 . . . and keep on adding consecutive multiples of 0.5 to the previous total.

What is the first answer you would reach that is greater than 50?

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The 7puzzle Challenge

The playing board of the 7puzzle game is a 7-by-7 grid containing 49 different numbers, ranging from 2 up to 84.

The 4th & 5th rows of the playing board contain the following fourteen numbers:

3     6     7     10     16     21     32     35     44     50     54     60     81     84

What is the average of the two prime numbers on the list?

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Answers

. . . can be found when clicking this.

7puzzleblog

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