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The Wooly Wonder Company makes t-shirts and hats. It makes a profit of $4 on t-shirts and $5 on hats. It takes 10 minutes to print a shirt and 15 minutes to dry it. It takes 16 minutes to print a hat and 12 minutes to dry it. There are 20 hours (1200 minutes) of time available for printing and 20 hours available to dry them. How many of each should be made to maximize profits, and what is that profit?

1 Answer

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Answer:

To maximize profits;

96 t-shirts should be produced

85 hats should be produced

The profit from the t-shirts is $348

The profit from the hats is $425

Explanation:

The given information are;

The amount of profit per t-shirt = $4

The amount of profit per t-shirt = $5

The time it takes to print a t-shirt = 10 minutes

The time it takes to dry the printed t-shirt = 15 minutes

The time it takes to print a hat = 16 minutes

The time it takes to dry the printed hat = 12 minutes

The amount of time available for printing = 20 hours = 1200 minutes

The amount of time available for drying = 20 hours = 1200 minutes

Therefore, we have;

The total number of t-shirts that can be printed in 20 hours = (The amount of time available for printing)/(The time it takes to print a t-shirt)

The total number of t-shirts that can be printed in 20 hours = (1200 minutes)/(10 minutes)

The total number of t-shirts that can be printed in 20 hours = 120 t-shirts can be printed

The total number of t-shirts that can be dried in 20 hours = (The amount of time available for drying the t-shirts)/(The time it takes to dry a t-shirt)

The total number of t-shirts that can be dried in 20 hours = (1200 minutes)/(15 minutes) = 80 t-shirts can be dried

The total number of hats that can be printed in 20 hours = (The amount of time available for printing)/(The time it takes to print a hat)

∴ The total number of hats that can be printed in 20 hours = (1200 minutes)/(16 minutes) = 75 hats can be printed

The total number of hats that can be dried in 20 hours = (The amount of time available for drying the hats)/(The time it takes to dry a hat)

∴ The total number of hats that can be dried in 20 hours = (1200 minutes)/(12 minutes) = 100 hats

Therefore, given that only 80 t-shirts can be dried in 20 hours, we have;

The total number of t-shirts to be produced = 80 t-shirts

The profit made from the shirts is 80 × $4 = $320

Also, given that only 75 hats can be dried in 20 hours, we have;

The total number of t-shirts to be produced = 75 hats

The profit made from the shirts is 75 × $5 = $375

However, to maximize profit, we have;

Total time to print and dry the t-shirts = 1200 + 1200 = 2,400 minutes

Therefore, whereby X number of t-shirts can be produced in the total time, we have;

10·x + 15·x = 2,400 minutes

25·x = 2,400 minutes

x = 2,400 minutes/25 = 96 t-shirts should be produced

Profit = $4 × 96 = $348

Similarly, for the hat, we have;

16·x + 12·x = 2,400 minutes

28·x = 2,400 minutes

x = 2,400 minutes/28 ≈ 85 hats should be produced (rounding down)

Profit = $5 × 85 = $425.

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