Kindly please assist me with the below question

QUESTION THREE 1 Cowy Traders is considering investing in project Beef. The following details relate to this project. Initial investment Expected economic lifetime Minimum required rate of return Net annual cash inflows 1st year 2nd year 3rd year 4th year Project Beef R562 500 4 years 12% R180 000 R195 000 R210 000 R220 000 Required Calculate the following in respect of Project Beef. 3.1 3.1.1 The payback period (answer expressed in years, months and days) (4 marks) 3.1.2 The net present value (NPV) (round off amounts to the nearest Rand) (5 marks) 3.1.3 The internal rate of return (IRR) (answer correct to 2 decimal places) (7 marks) Refer to your calculations in question 3.1.2 and state whether Cowy Traders should invest in Project Beef or not. Motivate your answer. 3.1.4 (2 marks) 2 By the end of the third quarter of 2016, the standard cost of material for product X was as follows: The actual production of product X for the third quarter of 2016 was as follows: Required: Calculate the following variances: 3.2 1. 4 kg per unit at R3 per kg 2. 45 000kg of material was purchased at R2, 80 for the third quarter. 3. 9 000 units which took 37 000 kg of material 3.2.1 Raw material price variance (3 marks) 3.2.2 Raw material usage variance