Preble company manufactures one product, its variable manufacturing overhead is applied to production based on direct labour- hours, and its standard costs per unit are as follows: Direct materials6 kg of $8.00 per kg Direct labour 3 hours at $14 per hour Variable overhead 3 hours at $5 per hour Total standard cost per unit $ 48.00 4200 15.00 $105.00 The company planned to produce and sell 19,000 units in March. However, during March the company actually produced and sold 24,000 units and incurred the following costs a. Purchased 160,000 kg of raw materials at a cost of $720 per kg. All of this material was used in production b. Direct labour 60,000 hours at a rate of $15 per hour c Total variable manufacturing overhead for the month was $336,600 Q1 a. What is the materials price variance for March b. What is the materials quantity variance for March c. What is the labour rate variance for March d. What is the labour efficiency variance for March e. What is the variable overhead spending variance for March What is the variable overhead efficiency variance for March f