Noplastic company produces paper bags for Grocery stores. The Company uses standard costing system to monitor and control costs. The standards for materials and labour costs to manufacture 1 bag are as follows: Direct materials: 7.2 lbs. @ $5 per lb. $36.00 Direct labour: 0.4 hours @ $20 per hour $8.00 During the last month, Noplastic produced 2,500 large bags. Twenty thousand (20,000) lbs. of direct materials were purchased @ $4.80 per lb. There was no direct materials inventory at the beginning and end of the month. Nine hundred (900) direct labour hours were recorded @ $24 per hour. Required: 1. Compute direct materials price and quantity variance. 2. Compute direct labour rate and efficiency variance. 3. What is the total materials variance? 4. What is the total labour variance