A Neat Little Problem
Tear up a piece of paper into 9 pieces. Write the digits 1 to 9 on a piece of
paper, one digit per piece. Now rearrange the bits of paper to form three
3-digit numbers, such that the sum of the two smaller numbers equals the
larger. There is more than one solution. How many solutions are there
altogether?
Rex Boggs
rex@cq-pan.cqu.edu.au
