Use the information provided below to calculate the following variances. Each answer must indicate whether the variance is favourable or unfavourable. 1.3.1 Material quantity variance (4 marks) 1.3.2 Labour rate variance (4 marks) 1.3.3 Variable manufacturing overheads efficiency variance (4 marks) INFORMATION The standard variable costs per unit (with a standard quantity of 25 000 units), set by Kidman Manufacturers, for Product M are as follows: Materials 4 kg at R10 per kg Labour 2 hours at R20 per hour Variable overhead 2 hours at R12 per hour