A car component can be produced by either of two manufacturing methods, method A or method B. For method A the fixed costs are 90000 per year and the variable costs are 15 per component. For method B the fixed costs are 99000 per year and the variable costs are 10 per component. Calculate the break-even quantity per year, for which the cost of manufacture is the same whichever method is used Give your answer as an exact value Break-even quantity