1.a) given that at the price of $200 per case of choclate a company supplies 1000 cases.when the price rises to $ 300 per case. the company increases the supply to 1500 cases. calculate the price elasticity of supply.

b) given a demand schedule for commodity X as follows :

price (cents) per unit; 8,7,and 6

unit of X demanded per week; 100, 150 and 300

calculate the point elasticity of demand for commodity X for:

i. a price fall from 8cent to 7 cents

ii. a price fall from 7cent to 6 cents

iii. a price rise from 6cent to 7 cents

iv. a price fall from 7cent to 8 cents