/attempt.php?attempt=2/22558cmid=212395&page=2 The standard labour component and the actual labour component engaged during the month are given below Semi- Skilled Skilled Unskilled (a) Standard number of workers in a group 30 (b) Standard wage rate (Rupees per hour) 20 120 10 8 (c) Actual number of workers employed during the month in the group (d) Actual wage rate per hour (Rs per hour) 22 24 15 12 24 10 28 During the month of 200 working hours, the group produced 9,600 standard hours of work. You are required to calculate: (i) Wage rate variance; (ii) Labour efficiency variance; (iii) Labour mix variance and (iv) Total labour cost variance.