ISI 2007 ME II 5 c

[Algaeconomics]

Can anybody give the solution for this question. I tried searching on the forum but did not find the answer.

http://economicsentrance.weebly.com/uploads/1/1/0/5/1105777/msqe2007.pdf

[Seecha]

In the same paper** 3. (B) ** answer is x= 150 ?

[Algaeconomics]

Hey you can find the answer in the link.
http://discussion-forum.2150183.n2.nabble.com/ISI-2007-ME-II-td7586949.html#a7587023