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. If two values are within 0.1 dB from each other, consider them to be the same.
1 2 3 4 5  Two buzzers each producing a sound with intensity level of 67dB.
1 2 3 4 5  An object emitting a sound with an intensity level of 70dB.
1 2 3 4 5  Ten buzzers each producing a sound with intensity level of 60dB.
1 2 3 4 5  One hundred buzzers each producing a sound with intensity level of 50dB.
1 2 3 4 5  Four buzzers each producing a sound with intensity level of 64dB.

Explanation / Answer

B1 = 10*log(I/Io)

67 = 10*log(I/Io)

I = Io*10^6.7

I1 = 2*I = 10023744.7*Io

++++++++++++++++

B2 = 10*log(I/Io)

70 = 10*log(I/Io)

I = Io*10^7

I2 = I = 10^7*Io

__________________

B3 = 10*log(I/Io)

60 = 10*log(I/Io)

I = Io*10^6

I3 = 10*I = 10^7*Io

__________________________

B4 = 10*log(I/Io)

50 = 10*log(I/Io)

I = Io*10^5

I4 = 100*I = 10^7*Io

___________________________

B5 = 10*log(I/Io)

64 = 10*log(I/Io)

I = Io*10^6.4

I5 = 4*I

I5 = 10047545.7260383292

2 = 3 = 4 < 1 < 4

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