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problem
What could the half time scores have been in these Arsenal matches?
problem
Trapezium Arch
Weekly Problem 27 - 2007
Ten stones form an arch. What is the size of the smallest angles of the trapezoidal stones?
problem
Teddy Bear Line-Up
What is the least number of moves you can take to rearrange the bears so that no bear is next to a bear of the same colour?
problem
One Variable, Two Variable, Three Variable, More
Displaying one-variable and two-variable data can be straightforward; what about three or more?
problem
Catalyse That!
Can you work out how to produce the right amount of chemical in a
temperature-dependent reaction?
problem
Olympic Logic
Can you use your powers of logic and deduction to work out the missing information in these sporty situations?
problem
Favourite
Mega Quadratic Equations
What do you get when you raise a quadratic to the power of a quadratic?
problem
Favourite
Magic Letters
Charlie has made a Magic V. Can you use his example to make some more? And how about Magic Ls, Ns and Ws?
problem
Favourite
Of All the Areas
Can you find a general rule for finding the areas of equilateral triangles drawn on an isometric grid?