Yes, I think that the third level was a medium of escape for Charley. Life in modern world is full of insecurity, fear, war, worries and stress. Man has to confront them all the times. The harsh realities of life make living quite unpleasant and even unbearable. So he wants to escape into a wishful world. Charley talks to his psychiatrist friend about the third level at the Grand Central Station. His friend calls it “a walking-dream wish fulfillment”. Charley possesses an escapist tendency. Even his stamp collecting is a ‘temporary refuge from reality’.
Why does Charley say, “He (Sam) certainly can’t go back to his old business”? (The Third Level)
A racing track is built around an elliptical ground whose equation is given by \[ 9x^2 + 16y^2 = 144 \] The width of the track is \(3\) m as shown. Based on the given information answer the following: 
(i) Express \(y\) as a function of \(x\) from the given equation of ellipse.
(ii) Integrate the function obtained in (i) with respect to \(x\).
(iii)(a) Find the area of the region enclosed within the elliptical ground excluding the track using integration.
OR
(iii)(b) Write the coordinates of the points \(P\) and \(Q\) where the outer edge of the track cuts \(x\)-axis and \(y\)-axis in first quadrant and find the area of triangle formed by points \(P,O,Q\).