The materials usage variance is calculated as Select one: a. (Actual quantity - Standard quantity) Actual price b. (Actual price - Standard price) x Actual quantity c. (Actual price - Standard price) Actual quantity d. (Actual quantity - Standard quantity) x Standard price The materials price variance is calculated as Select one: a. (Actual price - Standard price) x Actual quantity b. (Actual quantity - Standard quantity) x Standard price c. (Actual price - Standard price) Standard quantity d. (Actual quantity - Standard quantity) Actua price Which of the following is a disadvantage of adopting a standard costing system? (i) to improve planning and control (ii) to facilitate product costing and pricing Select one: a. (i) only b. (ii) only c. Both (i) and (ii) d. Neither (i) nor (ii)