(B) A company has prepared the following standard cost card: Materials (4 kg at Rs4.50 per kg) Labour (5 hrs at Rs5 per hr) Variable overheads (5 hrs at Rs2 per hr) Fixed overheads (5 hrs at Rs3 per hr) Budgeted selling price Rs75 per unit. Budgeted production Budgeted sales There is no opening inventory The actual results are as follows: Sales: Production: Materials (35,464 kg) Labour (Paid 45,400hrs; worked 44,100 hrs) Variable overheads Fixed overheads Rs per unit 18 20 25 10 15 Rs68 8,700 units 8,000 units 8,400 units for Rs613,200 8,900 units with the following costs: 163,455 224,515 87,348 134,074 Prepare a flexed budget (ie budget at 8,400 unit) and calculate the relevant and total variances [15 marks]