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problem
Debasing the Coinage
11 to 14
How much lighter will £5 worth of 5p's be with these new lighter coins?
problem
Half Past Two
11 to 14
Weekly Problem 21 - 2009
What is the angle between the two hands of a clock at 2.30?
What is the angle between the two hands of a clock at 2.30?
problem
Symmetriangle
11 to 14
Weekly Problem 35 - 2012
How many more triangles need to be shaded to make the pattern have a line of symmetry?
How many more triangles need to be shaded to make the pattern have a line of symmetry?
problem
Initial Fibonacci
11 to 16
Weekly problem 46 - 2006
What is the first term of a Fibonacci sequence whose second term is 4 and fifth term is 22?
problem
Rectangle Rearrangement
14 to 16
A 3x8 rectangle is cut into two pieces... then rearranged to form a right-angled triangle. What is the perimeter of the triangle formed?
problem
Antiques Roadshow
14 to 16
Last year, on the television programme Antiques Roadshow... work out the approximate profit.
problem
Mid-point Area
11 to 14
M is the midpoint of the side of the rectangle. What is the area (in square units) of the triangle PMR?
problem
Multiple Magic
11 to 14
Think of any whole number. Each time you perform a sequence of operations on it, what do you notice about the divisors of your answer?