16, 26, or 36, There is a black scarf in the 3rd figure on row #1. That has to accounted for:

My solution: Briefcase = 5 and backpack = 6. On the top row, subtract 6 points for each backpack, and the 3 couples plus the scarf = 12. Therefore the couple has to be either 1, 2, or 3.

Couple = 1, scarf = 9 - total = 12. Solution #1: 6 + (10 x 1) = 16

Couple = 2, scarf = 6 - total = 12. Solution #2: 6 + (10 x 2) = 26

Couple = 3, scarf = 3 - total = 12. Solution #3: 6 + (10 x 3) = 36