Table: list of schools in the wellington region
Question: If the total number of students in all schools in the Wellington region increased by 20%, what would be the new average roll?
Step 1 (Operation, Indexing): roll
Step 2 (Reasoning, Aggregating): SUM, roll
Step 3 (Reasoning, Arithmetic): multiply, 1.2
Step 4 (Reasoning, Aggregating): AVG, roll
Answer: 471.6