No need explanation for this question.

Consider the following economy where P is the price of the product, Q is the quantitiy of the product over the four years the data is available. All prices are in AUD. We assume that you are not allowed to buy spare tyres and that steel is banned from usage outside of cars. What is the real GDP for the year 2012? Time left 0:37: Product/Service 2010 2011 2012 2013 P = 10 P = 20 P = 30 P = 40 Car Q = 1 Q=5 Q = 10 Q = 15 P = 1 P = 2 P = 3 P = 4 Tyre Q = 2 Q = 10 Q = 20 Q = 30 P = 1 P = 2 P = 3 P = 4 Steel Q =2 Q= 10 Q = 20 Q = 30 O a. 840 O b. 14 O c. 300 O d. Not enough information O e. 420