4. Arish Company produces a commercial cleaning compound known as Zoom. The direct materials 5 and direct labor standards for one unit of Zoom are given below: Standard Quantity Standard Price or Standard or Hours Rate Cost Direct materials 4.6 pounds Tk 2.50 per pound Tk 11.50 Direct labor ...... 0.2 hours Tk 12.00 per hour Tk 2.40 During the most recent month, the following activity was recorded: a. Twenty thousand pounds of material were purchased at a cost of Tk 2.30 per pound. b. All of the material purchased was used to produce 4,000 units of Zoom. c. 750 hours of direct labor time were recorded at a total labor cost of Tk 10,400. Requirements: A) Compute the materials price and quantity variances for the month. B) Compute the labor rate and efficiency variances for the month