on 1st October 2016 Raj and company purchased machinery worth 40000. On 1st October 2018 it buys additional machinery worth 10000. On 30 September 2019 half of the machinery purchased on 1st October 2016 is sold for 8200. The company writes of 10% per annum on the original cost. The accounts are closed every year on 31st March. Show the machinery account for 4 years