DAY 12

Today’s Challenge

Add together the 7th prime number, the 7th square number, the 7th 2-digit number and the 7th whole number that contains a ’7′. What is your answer?

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The 7puzzle Number Challenge

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

The 5th & 6th rows of the playing board contain the following fourteen numbers:

5     6     7     12     16     18     20     21     33     49     50     56     81     84

From the list:

  1. What is the sum of the multiples of 5?
  2. What is the difference between the highest and lowest multiples of 7?
  3. Which four different numbers have a sum of 100?

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Answers

. . . can be found when clicking this.

7puzzleblog

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