Solve the exercise calculations step by step, please.

1. In drilling wells in a certain type of terrain, an oil company finds that the depth to which it can drill before changing drill bits is given by the relationship Qi=300Tdas, where Qc= cumulative meters, Td= drilling time. days. Drilling cost are $4250/ day. It requires 18h to install a new drill bit at a total cost of $10,500. Find the optimum cycle time for the minimum monthly cont at a drilling rate of 2000m/month by using the Fibonacei search technique when n=6 within an interval of 1 to 4 days