Final answer:
The annual amortization charge for the patent is $2,400.
Step-by-step explanation:
To calculate the annual amortization charge for the patent, you need to divide the cost of the patent by its useful life. In this case, the cost of the patent is $60,000 and the useful life is 25 years.
Annual amortization charge = Cost of patent / Useful life = $60,000 / 25 = $2,400
Therefore, the annual amortization charge for the patent is $2,400.