Question

An animal feed company must produce at least 200 kgs of a mixture consisting of
ingredients and daily. costs Birr 3 per kg and Birr 8 per kg. No more than 80 kg of
can be used and at least 60 kg of must be used.

Answer 1

Answer:

840

Explanation:

Let

The mixture consists on the product be

x and y

therefore

x + y = 200kgs

where

x < 80

y > 60

the cost per kg

3x + 8y

The cost is less so we will use maximum X but keep in mind that it should be not more than 80kg

x = 80 kg

y = 200 - 80 kg

y = 120kg

\begin{gathered}cost = 3 \times 80 + 5 \times 120 \\ 240 + 600 \\ 840 \\ so \: the \: cost \: of \: mixture \: = 840\end{gathered}

cost=3×80+5×120

240+600

840

sothecostofmixture=840