Can this be solved by an accounting expert instead? Question $4\mathrm{.}1($Total: $33$ marks$)$

Hot Wheels Ltd$.$ makes small motorcycles. The monthly demand ranges from $80$ to $100$ motorcycles. The average demand is $92$ motorcycles. The plant operates $300$ hours a month. Each motorcycle takes approximately $1\mathrm{.}5$ hours.

If the company adds a new line of scooters, initial demand will be $20$ per month. Each scooter will take $1$ hour to make. To offset approaching production capacity, expanding the assembly line is possible. This will decrease manufacturing time for all products by $20$ percent. However, this will increase the costs of motorcycle cycles from $\backslash (\backslash$$ $400\backslash )$ to $\backslash (\backslash$$ $500\backslash )$ and scooters from $\backslash (\backslash$$ $200\backslash )$ to $\backslash (\backslash$$ $240\backslash ).$ The change will also cause increases in prices from $\backslash (\backslash$$ $700\backslash )$ to $\backslash (\backslash$$ $750\backslash )$ for motorcycles and from $\backslash (\backslash$$ $450\backslash )$ to $\backslash (\backslash$$ $500\backslash )$ for scooters.

Required

$1.$ What is the average waiting time for motorcycles if they are the only item manufactured?

$2.$ What is the average waiting time if both motorcycles and scooters are produced and the assembly line is not enlarged?

$3.$ What is the average waiting time if both motorcycles and scooters are produced and the assembly line is enlarged?

$4.$ What is the expected monthly margin without scooters if the company sells all $92$ motorcycles it manufactures?

$5.$ What are the expected monthly contribution margins if scooters are made with the current assembly line and with the new assembly line? Assume average sales and that sales equals production.