Two workers, George and Zaheer, can produce the following amounts in one working day if they concentrate on producing only one of the products.

units of food units of clothing pairs of shoes

George 9 or 18 or 36

Zaheer 15 or 45 or 30

First they decide to produce for themselves the 6 units of food they need to survive. Then they specialise in the product at which they are relatively efficient.

What will be the total output of clothing and shoes, in addition to the 12 units of food, that is produced in one working day?

units of clothing pairs of shoes

A 6 18

B 21 22

C 27 12

D 36 12

N13P13Q2 Cambridge 9708