Question 3 (20 marks) Rocky Science Company applies standard costing and has established the following standards for its single product: Direct Materials Direct Labour Variable Manufacturing Overhead 1.5 litres at S2 per litre 0.4 hours at S10 per hour 0.4 hours at $2.5 per hour During November, the company made 5,000 units and incurred the following costs: Direct Materials Purchased 9.200 litres at $1.85 per litre Direct Materials Used 8.200 litres Direct Labour Used 1.950 hours at S10.25 per hour Actual Variable Manufacturing $5,125 Overhead The company applies variable manufacturing overhead to products based on direct labour hours. Required: a. What was the materials price variance for November? (4 marks) b. What was the materials quantity variance for November? (4 marks) c. What was the labour rate variance for November? (4 marks) d. What was the labour efficiency variance for November? (4 marks) e. What was the total variable overhead variance for November? (4 marks)