Real wage rate (2007 dollars per hour) 25 LS 20 15 10 5 0 50 100 150 200 250 300 Labour (billions of hours per year) Figure 6.3.2 Refer to Figure 6.3.2. The equilibrium quantity of labour is 150 billion hours per year. 250 billion hours per year. O 50 billion hours per year. O ASUS f6 X LA f 12 % & 6 OO O 1/ 4