a. Blue Mountains Bike Company manufactures motorbikes. The following information relates to the manufacture of the motorbikes: M M Units produced and sold 6800 5600 Direct manufacture labourhours 68 000 57 600 Direct materials used (tonnes) 14 500 12 200 Direct manufacture cost per hour $21 $22 Direct materials cost per tonne $431 $443 I Required: (i) What is the partial productivity for direct materials for each year? (4 marks) (ii) What is the partial productivity for direct manufacturing labour for each year? (4 marks) (iii) What is the total factor productivity for each year? (4 marks)