We had ideas from the Inter School in Zurich, Switerland, Moorfield Junior School, Higher Bebington Junior School on the Wirral, Year 5 pupils of Yarm Primary School, Cummersdale School in Carlisle as well as from students in Etobicoke, Ontario, Canada. There was quite a range of answers for this problem, from four ways to 740 ways to put the ten coins into the plum puddings! Tom Dutton put his thinking into a table and it was easier to see if all of the possible answers were included.

I wonder if some people will go back to this problem and see if they can arrange their answers in a way that allows them to check if they have all of the possibilities, or if they have included some possibilities more than once. Numbering circles to represent each of the ten old, gold coins then moving them into one of the three 'puddings' and then recording the results may help.