DAY 354:

Today’s Challenge

From the following Octaplus clues, find the values of the letters A to H, each of which contains a different whole number in the range 1-30:

  1.   A is ten lower than the value of G, but three higher than C,
  2.   C is half the value of B,
  3.   B is six lower than H, but three higher than E,
  4.   E is three times the value of F,
  5.   F is three lower than D,
  6.   D is five lower than A.

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 & 3rd columns of the playing board contain the following fourteen numbers:

4    12    13    15    17    21    22    27    35    55    56    60    80    81

Which four different numbers have a sum of exactly 100?

Make 354 Challenge

Can you arrive at 354 by inserting 2, 3, 4, 5 and 10 into the gaps below?

(◯×◯–◯)²+(◯×◯) = 354

Answers can be found here.

Click Paul Godding for details of online math tuition. Wherever you are in the world, please get in touch.

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