Answer:
b. S = 405, D = 0
Step-by-step explanation:
We have been given that profit for a particular product is calculated using the linear equation: [tex]\text{Profit}=20S+3D[/tex]. We are asked to choose the combinations of S and D that would yield a maximum profit.
To solve our given problem, we will substitute given values of S and D in the profit function one by one.
a. S = 0, D = 0
[tex]\text{Profit}=20S+3D[/tex]
[tex]\text{Profit}=20(0)+3(0)[/tex]
[tex]\text{Profit}=0[/tex]
b. S = 405, D = 0
[tex]\text{Profit}=20S+3D[/tex]
[tex]\text{Profit}=20(405)+3(0)[/tex]
[tex]\text{Profit}=8100+0[/tex]
[tex]\text{Profit}=8100[/tex]
c. S = 0, D = 299
[tex]\text{Profit}=20S+3D[/tex]
[tex]\text{Profit}=20(0)+3(299)[/tex]
[tex]\text{Profit}=0+897[/tex]
[tex]\text{Profit}=897[/tex]
d. S = 182, D = 145
[tex]\text{Profit}=20S+3D[/tex]
[tex]\text{Profit}=20(182)+3(145)[/tex]
[tex]\text{Profit}=3640+435[/tex]
[tex]\text{Profit}=4075[/tex]
Since the combination S = 405, D = 0 gives the maximum profit ($8100), therefore, option 'b' is the correct choice.