1.A speaker is placed between two observers who are 110 m apart, along the line connecting them. If one observer records an intensity level of 80 dB, how far is the speaker from each observer ?

Ans:10m and 100 m.

Can someone show me the solution for this answer.I'm weak in intensity.Pleasse help me.Thanks in advance.

There seems to be a missing piece of information. Unless you also know either the intensity recorded by the second observer or the intensity generated at the speaker, it's not possible to answer this. Are you sure you typed in the question completely?

If someone is weak in intensity, does that mean they're not very bright? :) Sorry, I couldn't resist the pun. LOL.