Because the sum of the weights in each of the three groups of potatoes below is not a multiple of 4, there is no way of dividing the potatoes so that each portion has the same total weight. What
method of dividing them has the smallest divergence?
(a) Group 5:
8 7 4 3
6 4 3
6 5 5 3
(b) Group 6:
8
7
5
7
6
5
4
4
4
6
5
(c) Group 7:
8
7
8
7
7
6 5
6 4
6 3
8