DAY 47:

Today’s Challenge

If you multiply a certain number by 3 and then add 30, the result is the same as if you first added 17 to this number and then multiplied by 2.  Is the value of this number 1, 2, 3, 4 or 5?

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 3rd & 7th rows contain the following fourteen numbers:

4   11   13   24   25   27   30   36   42   45   66   70   77   80

What is the product of the lowest number and highest number?

Make 47 Challenge

Can you arrive at 47 by inserting 2, 6, 7 and 10 into the gaps on each line?

  •  ◯×◯+◯÷ = 47
  •  ◯²(◯+◯)÷ = 47
  •  (◯+◯)²–(+◯) = 47

Answers can be found here.

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