Arianna, Becky, Christian, and Diego each took the ACT. This standardized test has four sections: English, Reading, Math, and Science, each of which is given a score from 1 to 36. Then, a composite score is given to each student by taking the average score from each section (rounded to the nearest whole number). The matrix below contains the ACT section scores for each of the four students listed alphabetically by row. The columns are as follows: 1 - English, 2 - Reading, 3 - Math, 4 - Science. 28 34 16 20
19 20 15 20
17 19 29 25
25 26 34 27
What was Diego's composite score?