Problem 5 The standard mix to produce one unit of product is as follows: Material A 60 units @ RO 15 per unit Material B 80 units @ RO 20 per unit Material C 100 units @ RO 25 per unit During the month of April, 10 units were actually produced and consumption was as follows:. Material A 640 units @ RO 17.50 per unit Material B 950 units @ RO 18.00 per unit Material C 870 units @ RO 27.50 per unit Calculate all material variances