# Sound Intensity Question

Tiba

## Homework Statement

A choir made up by 100 voices (i.e. 100 singers), during the execution of a song, reaches the sound intensity of 100dB. Assuming that all singers sang with the same intensity, the sound intensity of each singer was...?

ΔS=10.log(I/Io)

## The Attempt at a Solution

The correct answer is 80, but I REALLY have no clue on how to get it!

## Answers and Replies

voko
What is I and what is Io here?