Direct Materials: 6 metres at $1.50 Direct Labour: 1 hour at $6.75 Variable Overhead: 1 hour at $4.50 Total Standard Variable Cost per Unit $ 9.00 $ 6.75 $ 4.50 $20.25 During the month of October, 6,000 units were produced. Selected cost data relating to the month's production follow: Material Purchased: 60,000 metres at $1.43 $85,800 Material Used in Production: 38,000 metres Direct Labour. ? hours at $_? per hr. $41,925 Variable Overhead Cost Incurred $30,713 Variable Overhead Efficiency Variance $ 2,250 unfavourable There was no beginning inventory of raw materials. The variable overhead rate is based on direct labour-hours. Required: a) For direct materials, compute the price and quantity variances (4 marks) b) Prepare journal entries (3 marks) (4 marks) (3 marks) c) For direct labour, compute the rate and efficiency variances d) Prepare journal entries e) For variable manufacturing overhead, compute the spending and efficiency variances (4 marks) f) State possible causes of at least 2 computed variances (2 marks)