New to ACCAdepreciation

The plant and machinery at cost account of a business for the year ended 30 June 20X4 was as follows: 20X3 20X3 1 Jul Balance 240,000$ 30 Sep Transfer disposal account 60,000$ 20X4 20X4 1 Jan Cash – purchase of plant 160,000$ 30 Jun Balance 340,000$ 400,000 400,000 he company's policy is to charge depreciation at 20% per year on the straight line basis, with proportionate depreciation in the years of purchase and disposal. What should be the depreciation charge for the year ended 30 June 20X4? A $68,000 B $64,000 C $61,000 D $55,000 (2 marks)