Returning home from New York. Ergo puzzle time. Today’s is a simple yet challenging problem.
Think of the various pairs of two numbers you can make using the digits 1,2,3,4,5,6,7,8,9 (each used only once) e.g. (2345, 16789) or (743, 821569) and so on.
Which is the pair (of two numbers) has the maximum product value (compared to other pairs)?