Let's say there is a Pizzeria outside SME named Abort Mess Try Pizza- AMTP. AMTP serves two types of pizzas namely 'Margherita Bufala' and 'Padana'. It has hired 5 chefs for preparing pizzas. A chef requires 15 mins to prepare a 'Margherita Bufala' and 1 hour to prepare 'Padana'. Each chef works 8 hours a day.

(a) Construct AMTP's production- possibility frontier.

(b) Construct AMTP's production possibility frontier when the efficiency of the chef gets doubled while preparing 'Padana'.

Please provide detailed answer.