Final answer:
The minimum resale price needed to justify refurbishing the cruiser yacht, when including the current value of £3,100, labor costs of £1,000, and materials cost of £500, is £4,600. This aligns with option D as the correct answer.
Step-by-step explanation:
The minimum resale price that Exmouth Marine Engineers Ltd would have to charge to justify the refurbishment of the cruiser yacht can be calculated by considering the costs associated with the refurbishment, the current value of the yacht in its present condition, and the opportunity cost of the labor.
To calculate this price, first consider the value of the yacht in its current condition, which is £3,100. Next, add the cost of labor, which is 100 hours times the internal cost of £10 per hour, totaling £1,000. It should be noted that even though the standard labor charge is £20 per hour, since the workers are already on payroll, their actual cost to the company is their wage of £10 per hour, which is the relevant cost for this calculation.
Additionally, materials costing £500 will be used, which are already in inventory. However, these materials could alternatively be used for other projects or sold, so this cost must also be included. After adding the current value of the yacht (£3,100), labor costs (£1,000), and the materials (£500), the total cost amounts to £4,600.
Therefore, to justify the refurbishment, the business needs to sell the yacht for more than £4,600. The minimum resale price aligns with option D, which is £4,600.