DAY 344

Today’s Challenge

. . . is a typical number puzzle from a fellow enthusiast in Yokohama, Japan.  If you enjoy doing these, you should visit Kojiro Tominaga’s twitter account, @Make_to10, for a range of similar challenges:

Can you insert 2, 3, 4, and 6 into the gaps on each line below so that all three answers equal 10, 20 and 30 respectively?

  •  (◯÷◯+◯)×◯ = 10
  •  (◯÷◯+◯)×◯ = 20
  •  (◯÷◯+◯)×◯ = 30

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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 1st & 6th columns of the playing board contain the following fourteen numbers:

7     13     21     22     27     30     36     40     49     54     55     56     60     64

Which two numbers, when each is doubled, also appear on the list?

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Answers

. . . can be found when clicking this.

7puzzleblog

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