What is the averagelate-night sound level in the room

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An interstate highway has been built through a poor neighborhood ina city. In the afternoon, the sound level in a rented room is100.0 dB as 85cars pass outside the window every minute. Late at night, thetraffic flow is only five cars per minute. What is the averagelate-night sound level in the room?

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Reference no: EM13648963

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