Chapter 5, Problem 7RP

a.

Explanation of Solution

Optimum solution

• Let $\text{SM}$ be the thousands of soldiers manufactured, $\text{SB}$ be the thousands of soldiers bought at $27, $\text{TM}$ be thousands of trains manufactured and $\text{TB}$ be thousands of trains bought at $50.
• The new optimum solution value or profit is calculated by the given formula:

  $\text{New value = Old value – }(\text{Key column value ×}$

b.

Explanation of Solution

Pay for another hour of labour

• Let $\text{SM}$ be the thousands of soldiers manufactured, $\text{SB}$ be the thousands of soldiers bought at $27, $\text{TM}$ be thousands of trai

c.

Explanation of Solution

Profit

• Let $\text{SM}$ be the thousands of soldiers manufactured, $\text{SB}$ be the thousands of soldiers bought at $27, $\text{TM}$ be thousands of trains manufactured and $\text{TB}$ be thousands of trains bought at $50.
• The new optimum solution value or profit is calculated by the given formula:

  $\text{New value = Old value – }(\text{Key column value ×�}$

d.

Explanation of Solution

Profit

• Let $\text{SM}$ be the thousands of soldiers manufactured, $\text{SB}$ be the thousands of soldiers bought at $27, $\text{TM}$ be thousands of trains manufactured and $\text{TB}$ be thousands of trains bought at $50.
• The new optimum solution value or profit is calculated by the given formula:

  $\text{New value = Old value – }(\text{Key column value ×�}$