MrSmith,an Avid Reader,must Decide on Which Books to Take with Him

Essay

Mr.Smith,an avid reader,must decide on which books to take with him during a long flight.Mr.Smith will use his carry-on bag,which can hold a maximum of 20 pounds.Mr.Smith has attached a satisfaction index for each book,based on a 5-point scale (1 = low satisfaction,5 =high satisfaction),as shown below.
$$\begin{array} { l c c } \text { Book } & \text { Satisfaction Index } & \text { Weight (lbs.) } \\ \text { Marketing } & 4 & 4 \\\text { History } & 5 & 3 \\\text { Statistics } & 1 & 3 \\\text { Management } & 3 & 5 \\\text { Finance } & 3 & 4 \\\text { Economics } & 2 & 3 \\\text { Excel } & 5 & 4 \\\text { Access } & 4 & 5\end{array}$$
Which books should Mr.Smith take with him on the flight to maximize his satisfaction index?