Amanufacturerforaproductdeterminesthat,foritsfirst600unitsoftheproducts sold,theirprofitisGHS40perunit.Theprofitoneachoftheunitsbeyond600is decreasedby5pesewastimesthenumberofadditionalproductsproduced.Findthe profitmaximisingoutput.Notethatorderscannotbelessthan600units
Question
Amanufacturerforaproductdeterminesthat,foritsfirst600unitsoftheproducts sold,theirprofitisGHS40perunit.Theprofitoneachoftheunitsbeyond600is decreasedby5pesewastimesthenumberofadditionalproductsproduced.Findthe profitmaximisingoutput.Notethatorderscannotbelessthan600units
Solution 1
To find the profit-maximising output, we need to first understand the profit function.
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For the first 600 units, the profit is GHS 40 per unit. So, the total profit for the first 600 units is 600 * 40 = GHS 24,000.
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For units beyond 600, the profit decreases by 5 pesewas times the number of additional products produced. Let's denote the number of additional products as x. So, the profit for each additional unit is 40 - 0.05x.
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The total profit function P(x) is then the sum of the profit from the first 600 units and the profit from the additional units. That is, P(x) = 24,000 + (40 - 0.05x) * x.
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To find the profit-maximising output, we need to find the value of x that maximises P(x). This is done by taking the derivative of P(x) with respect to x, setting it equal to zero, and solving for x.
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The derivative of P(x) is P'(x) = 40 - 0.1x.
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Setting P'(x) = 0 gives 40 - 0.1x = 0, which solves to x = 400.
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Therefore, the profit-maximising output is 600 (the initial units) + 400 (the additional units) = 1,000 units.
Please note that this is a simplified model and actual business decisions should take into account other factors such as market demand, production capacity, and cost variations.
Solution 2
To find the profit-maximising output, we need to first understand the profit function.
-
For the first 600 units, the profit is GHS 40 per unit. So, the total profit for the first 600 units is 600 * 40 = GHS 24,000.
-
For the units beyond 600, the profit decreases by 5 pesewas times the number of additional products produced. Let's denote the number of additional products as x. So, the profit for each additional unit is 40 - 0.05x.
-
The total profit function P(x) is then the sum of the profit from the first 600 units and the profit from the additional units. That is, P(x) = 24,000 + (40 - 0.05x) * x.
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To find the profit-maximising output, we need to find the maximum of this profit function. This occurs where the derivative of the profit function is zero.
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The derivative of P(x) is P'(x) = 40 - 0.1x.
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Setting P'(x) = 0 gives x = 400.
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However, since orders cannot be less than 600 units, the profit-maximising output is 600 + 400 = 1,000 units.
So, the manufacturer should produce 1,000 units to maximise profit.
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