Please assist in answering all questions below

The standard material costs of finished product PEP are as follows: 2kg raw material A@R10 per kg Actual information: Purchase of raw material A 2000kg@R9.50 per kg Issue of raw material A 1200kg Units of product PEP manufactured 280 units Required Calculate the following in respect of material A (a) Purchase price variance (3) (b) Issue price variance (c) Quantity variance (d) Total variance