In the Afternoon,the Decibel Level of a Busy Freeway Is

question 4

Multiple Choice

In the afternoon,the decibel level of a busy freeway is 80 dB with 100 cars passing a given point every minute.Late at night,the traffic flow is only 8 cars per minute.What is the late-night decibel level?

• A) 77 dB
• B) 74 dB
• C) 70 dB
• D) 69 dB