A fruit seller can spend at most Rs 200 to buy apples and oranges. The cost of one apple is Rs 20 and the cost of one orange is Rs 10. If he buys x apples and y oranges, the expenditure satisfies 20x+10y=200. Answer the following:
(i) Determine the intercepts of the line represented by the equation 20x+10y=200.
(ii) What do these intercepts represent in the context of purchasing only one type of fruit?
(iii) Draw the graph of the equation on a Cartesian plane and write down any two integer-valued points (other than the intercepts) that lie on the graph and represent possible purchases.