According to US Government Regulations, the Maximum Sound Intensity Level

Multiple Choice

According to US government regulations, the maximum sound intensity level in the workplace is 90.0 dB. Within one factory, 32 identical machines produce a sound intensity level of 92.0 dB. How many machines must be removed to bring the factory into compliance with the regulation?

A) 2
B) 8
C) 12
D) 16
E) 24