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Sagot :
This is a tricky math problem! Let's break it down step-by-step.
First, let's start with Matt. Mandy can get 100 kg of corn cobs for $160, so her cost per kilogram is $1.60. If she sells each kilogram for $5, her profit per kilogram is $3.40.
Now, let's look at Robert. If Mandy buys in bulk, she can get each corn cob for $0.60. To make a profit of $3.40 per kilogram, she would need to sell each cob for $1.
Answer:
In this scenario, the best profit per corn cob Mandy can make is by buying in bulk from Matt, even though the cost per cob might seem higher at first glance. Here's why:
Cost Analysis:
Matt (bulk purchase):
Total cost: $160 for 100 kilograms
Cost per kilogram: $160 / 100 kg = $1.6 per kg
We need to estimate the number of cobs per kilogram. This depends on the corn variety, but let's assume an average of 12.5 cobs/kg. (This is a common assumption, but the actual number may vary.)
Cost per cob: $1.6/kg * 1 kg/12.5 cobs ≈ $0.128 per cob (approximately)
Robert (large quantities):
Cost per cob: $0.60
Selling Price:
Mandy sells by weight: $5 per kilogram or $1.25 per cob
Profit Comparison:
Profit from Matt: $1.25 selling price - $0.128 cost per cob ≈ $1.12 per cob (approximately)
Profit from Robert: $1.25 selling price - $0.60 cost per cob = $0.65 per cob
Conclusion:
Even though Robert's cost per cob seems lower ($0.60), Mandy makes a higher profit per cob by buying from Matt ($1.12) because of the lower cost per kilogram when buying in bulk. This is because she can sell more cobs from the 100 kilograms purchased from Matt compared to buying individual cobs from Robert at $0.60 each.
Note: The actual profit per cob from Matt might differ slightly depending on the exact number of cobs per kilogram.
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