You are standing in the middle of a large room listening to a cacaphony of sound

Question

You are standing in the middle of a large room listening to a cacaphony of sounds. Rank the intensity level of the sounds from each source (1=loudest, 2= next loudest, ...) Consider all objects to be right next to you. (Remember that if you have a tie, you skip some ranks.) If two values are within 0.1 dB from each other, consider them to be the same.
1 2 3 4  Ten buzzers each producing a sound with intensity level of 52dB.
1 2 3 4  One hundred buzzers each producing a sound with intensity level of 43dB.
1 2 3 4  Two buzzers each producing a sound with intensity level of 56dB.
1 2 3 4  An object emitting a sound with an intensity of 60dB.

Explanation / Answer

a) x = 10^(5.2) * 10
x = 10^(6.2)

b) x = 10^(4.3) * 100
x = 10^(6.3)

c) x = 10^(5.6) * 2
x = 10^(5.6 + log(2) )
x = 10^(5.9)

d) x = 10^6

a. 2
b. 1
c. 4
d. 3

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