Question 1155251
The loudness of sound is measured in decibels (db)
Example : The sound of a phone ringing , at 60 dB, has a sound intensity of 10^6 units. 

A loud rock concert might have a sound intensity of 120 db. How many times louder is the sound intensity at a rock concert compared to that of a phone ringing? 
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You have to specify the relation between "loudness" and the db's.