Illustration 16.7 The standard labour employment and the actual labour engaged in a week for a job are as under: Skilled workers Semi-skilled workers Unskilled workers Standard no. of workers in the gang 32 12 6 Actual no. of workers employed 28 18 4 Standard wage rate per hour 3 4 23 1 2 Actual wage rate per hour During the 40 hours working week, the gang produced 1,800 standard labour hours of work. Calculate: (a) Labour Cost Variance (b) Labour Rate Variance. (c) Labour Efficiency Variance (d) Labour Mix Variance (e) Labour Yield Variance (B.Com Hons Delhi; C.A. Inter)