Answer ALL the questions in this section. The UK government is concerned about the increasing level of pollution and the effects this is having on the UK population, as the number of health issues such as respiratory infections, heart disease and lung cancer, has increased by 30% in the last ve years. To encourage consumers to switch from petrol cars to electric cars the UK government has decided to impose a tax per litre of fuel (petrol, diesel and biodiesel). The effect following the introduction of the tax is shown in the graph below. Price per litre of fuel 3.80 2.20 1.20 090 Litres of fuel 0 20,300 35.420 50.3?5 3. Calculate the consumer surplus before the tax. You are required to show your workings