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.
The letters of the word ABACUS have been arranged in the shape of a
triangle. How many different ways can you find to read the word
ABACUS from this triangular pattern?
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?
Patrick from Woodbridge School gave a very
clear explanation of how to work out which weight is heavier, in
just two weighings of the balance, when you have been given 9
weights and you are told that one is slightly heavier than the
Daniel from Barclay School then built on this
strategy to work out which weight is heavier in just three
weighings of the balance when you have been given 27 weights and
been told that one is slightly heavier than the rest: