Suppose that Kim's yearly demand for the popular Korean shaved ice dessert, bingsu, is as follows:

PriceQty demanded at Income = $20,000Qty demanded at Income = $30,000$4500300$5420240$6300160$718080

(a)Calculate Kim's price elasticity of demand as the price of bingsu increases from $5 to $6 if

(i)his income is $20,000 and

(ii)his income is $30,000.

(b)Does Kim's demand for bingsu become more or less elastic or inelastic?

(c)Calculate Kim's income elasticity of demand for bingsu as his income increases from $20,000 to $30,000 if

(i)the price is $4 and

(ii)the price is $7.