DAY 02

Comment

Cutting the block into two pieces exposes more of the butter.

Answer

The surface area of X is more than half the surface area of the original block.

Readers' methods

AJ, of Liverpool L8:
the area of the original block is made up of two identical Large rectangles, two identical Medium rectangles and two identical Small rectangles, or 2L + 2M + 2S.
The area of X is 2 lots of half-L, 2 lots of half-M and 2 lots of S,
which is L + M + 2S.
This is more than half of 2L + 2M + 2S (which is L + M + S).

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