A table lists quarterly output in units: Q1 320, Q2 410, Q3 380, Q4 450. What is the average quarterly output for the year?
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Correct answer to question 209 (Arithmetic Reasoning): 390 units
Method
Add the four quarters and divide by 4. The total is 320 + 410 + 380 + 450 = 1,560, and 1,560 divided by 4 gives an average of 390 units.
Updated: November 2026