Problem of the Week
Problem D
Not as Easy as 1, 2, 3
Zephaniah places the numbers \(1\), \(2\), and \(3\) in the circles below so that each circle contains exactly one of \(1\), \(2\), and \(3\), and any two circles joined by a line do not contain the same number. He then finds the sum of the numbers in the four circles on the far right. What sums could he achieve?