When asked how old she was, the teacher replied: My age in years is not prime but odd and when reversed and added to my age you have a perfect square...
Four rods, two of length a and two of length b, are linked to form
a kite. The linkage is moveable so that the angles change. What is
the maximum area of the kite?
Adding in Pairs
Age 11 to 14 Short Challenge Level
Three whole numbers, when added two at a time, give sums of 39, 48 and 51.