A manufacturer of smart security systems originally supplied 12,000 units per month when the market price was £150 per unit. Due to an increase in demand, the market price has risen to £180 per unit, and the manufacturer has expanded its output to 15,600 units per month.
What is the price elasticity of supply for these smart security systems?
0.670.670.67
1.151.151.15
1.51.51.5
1.81.81.8