Place the 16 different combinations of cup/saucer in this 4 by 4 arrangement so that no row or column contains more than one cup or saucer of the same colour.
There are nine teddies in Teddy Town - three red, three blue and three yellow. There are also nine houses, three of each colour. Can you put them on the map of Teddy Town according to the rules?
Imagine you have six different colours of paint. You paint a cube
using a different colour for each of the six faces. How many
different cubes can be painted using the same set of six colours?
This is my solution to the question "Lesser Digits" in "The
April Six". I sincerely hope that it is good enough to be published
on the web page. By the way, that web page is very interesting.
Numbers that do not contain any of the digits 7, 8 and 9
Nisha Doshi of the Mount School, York,
James Page, Jamie Arnall and Jack Adcock of
Hethersett High School, and Astee Goh and Teo Yea
Tian Raffles Girls' Primary School, Singapore sent good
solutions to this and Ian Green , age 13 of
Coopers Company and Coburn School, Upminster, Essex came very
close. There were many incorrect solutions sent in for this