Troy industries purchased a new machine four years ago for R90,000. It has wear & tear over a straight-line period of five years. Assume a 30% tax rate.

1. What is the tax value of the machine?
2. Calculate the firms tax liability if it sold the machine for each of the following amounts:
   1. R110,000
   2. R65,000 iii. R15,000

iv. R18,000.