Question: 5 . Assume that a lighting system serving a 1 5 - meter by 1 5 - meter room uses 2 5 uniformly spaced fixtures

5. Assume that a lighting system serving a 15-meter by 15-meter room uses 25 uniformly spaced fixtures each having two 3,100 lumen lamps. Assume that the combined LLF is 0.65 and the CU is 81%. What would be the average illuminance in lux at the working surface?

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