On 31 December 2018, a business had a non-current asset with a net book value of $18000$. It had been bought in the year ended 31 December 2017. Depreciation is applied at a rate of $25\%$ per annum by the reducing balance method. In the year when it is purchased, a full year’s depreciation is charged. What was the original cost of the non-current asset?
- A$22500$
- B$24000$
- C$27000$
- D$32000$