a) Material Variance: Product X has standard direct material cost as follows: 10kg of material Y at GHS10 per kg = GHS100/unit of X During the period in question, 500 units of Product X were manufactured using 5850 kg of material Y which cost GHS49,300 Required: Calculate the following variances: (i) Direct material price variance (ii) Direct material usage variance (iii) Direct material total variance (b) Labour Variance: The standard direct labour cost of product X is as follows: 2hrs of Grade Z labour at GHS5.00 per hr. = GHS10.00/unit of X During the period in question, 500 units of Product X were made, and the direct labour cost of Grade Z labour was GHS4,450.00 for 1,150 hours of work. Required: Calculate the following variances: (i) Direct labour Rate Variance (ii) Direct labour Efficiency Variance (iii) Direct labour Total Variance (c) Variable Overhead Variance: Variable production overhead cost of product X is as follows: 2hours at GHS1.50/hour = GHS3.00 per unit of Product X In the month of January, 200 units of product X were made. The labor force worked for 410 hours of which 30 hours were recorded as idle time. The variable overhead cost was GHS615.00. Required: Calculate the ff variances: (i) Variable Overhead Total Variance (ii) Variable Overhead Expenditure Variance (iii) Variable Overhead Efficiency Variance