DAY 118:

Today’s Challenge

A traditional clock was numbered √1, √4, √9 . . . √144 around its circumference. Every digit is represented on the clock, except one:

  1.  What is this missing digit?
  2.  Which is the first square number to contain this missing digit?
  3.  If this clock was developed into a 24-hour clock, would it now contain the missing digit?

The 7puzzle 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

When finding the factors of 40 listed above, what is their sum?

Make 118 Challenge

Can you arrive at 118 by inserting 1, 2, 4 and 5 into the gaps on each line?

  •  ◯³+◯–◯×◯ = 118
  •  (◯³–◯×◯)×◯ = 118

Answers can be found here.

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