Revision history of "2000 PMWC Problems/Problem T4"

Diff selection: Mark the radio boxes of the revisions to compare and hit enter or the button at the bottom.
Legend: (cur) = difference with latest revision, (prev) = difference with preceding revision, m = minor edit.

  • (cur | prev) 20:32, 21 April 2014TheMaskedMagician (talk | contribs). . (446 bytes) (+446). . (Created page with "==Problem== Use the four colours red, yellow, blue and green to fill in the regions of the following diagram so that the adjacent regions are not the same colour. How many differ...")