In a building with 10.000 cubic feet where the air changes every two hours, what the rate of air change? A. 167.7 cfm B. 83.3 cfm C. 133.3 cfm D. 50 cfm

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Answer:Flow rate of air is given as 83.33 cubic feet per minute

Explanation:As we know that total volume of the air flow is given as

also we know that total time is

now we have flow rate given as