Quant Exam > Quant Questions > Mr. David manufactures and sells a single pro...
Start Learning for Free
Mr. David manufactures and sells a single product at a fixed price in a niche market. The selling price of each unit is Rs. 30. On the other hand, the cost, in rupees, of producing x units is 240 + bx + cx2, where b and c are some constants. Mr. David noticed that doubling the daily production from 20 to 40 units increases the daily production cost by 66.66%. However, an increase in daily production from 40 to 60 units results in an increase of only 50% in the daily production cost. Assume that demand is unlimited and that Mr. David can sell as much as he can produce. His objective is to maximize the profit.
How many units should Mr. David produce daily ?
- a)130
- b)100
- c)70
- d)150
- e)cannot be determined
Correct answer is option 'B'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
Mr. David manufactures and sells a single product at a fixed price in ...
Cost price function f(x) = cx2 + bx + 240.
When x = 20, f(20) = 400c + 20b + 240.
=> f(40) = 1600c + 40b + 240
66.67% is 2/3.
=> f(40) – f(20) = 2/3 * f(20).
Substituting f(40) and f(20), we get, 1200c+ 20b =(2/3) * (400c + 20b + 240)
Solving, we get 20b + 2800c = 480.
When x = 20, f(20) = 400c + 20b + 240.
=> f(40) = 1600c + 40b + 240
66.67% is 2/3.
=> f(40) – f(20) = 2/3 * f(20).
Substituting f(40) and f(20), we get, 1200c+ 20b =(2/3) * (400c + 20b + 240)
Solving, we get 20b + 2800c = 480.
Now, f(60) = 3600c + 60b + 240.
f(60) – f(40) = ½ * f(40)
Substituting, and solving, we get, 360 + 60b + 2400c = 240 + 60b + 3600c
c = 1/10.
f(60) – f(40) = ½ * f(40)
Substituting, and solving, we get, 360 + 60b + 2400c = 240 + 60b + 3600c
c = 1/10.
Substituting we get, b = 10.
So, the cost function f(x) = 0.1x2 + 10x + 240.
Selling price = 30 * x. ( Each unit SP is 30)
So, profit = SP – CP = 30x – (0.1x2 + 10x + 240) = -x2/10 + 20x – 240.
Selling price = 30 * x. ( Each unit SP is 30)
So, profit = SP – CP = 30x – (0.1x2 + 10x + 240) = -x2/10 + 20x – 240.
For maximum profit, differentiating this should give 0.
dp/dt = 0, dp/dt = -x/5 + 20
20 – x/5 = 0. x= 100.
20 – x/5 = 0. x= 100.
Also double differentiating d2p / dt2, we get a negative number, so profit is maximum.
So, profit is maximum when 100 units are produced daily.
Most Upvoted Answer
Mr. David manufactures and sells a single product at a fixed price in ...
Given information:
- Selling price of each unit = Rs. 30
- Cost of producing x units = 240 + bx + cx²
- Doubling the daily production from 20 to 40 units increases the daily production cost by 66.66%
- An increase in daily production from 40 to 60 units results in an increase of only 50% in the daily production cost
- Demand is unlimited
To maximize profit, we need to find the optimum daily production:
Step 1: Calculate the daily production cost for different production levels:
Let's assume the daily production is x units.
For 20 units, the cost is 240 + b(20) + c(20)² = 240 + 20b + 400c = 240 + 20(b + 20c) = 240 + 20k (where k = b + 20c)
For 40 units, the cost is 240 + b(40) + c(40)² = 240 + 40b + 1600c = 240 + 40(b + 40c) = 240 + 40k (where k = b + 40c)
For 60 units, the cost is 240 + b(60) + c(60)² = 240 + 60b + 3600c = 240 + 60(b + 60c) = 240 + 60k (where k = b + 60c)
Step 2: Calculate the percentage increase in cost:
The percentage increase in cost from 20 units to 40 units is (240 + 40k - 240 - 20k)/ (240 + 20k) * 100% = 66.66%
The percentage increase in cost from 40 units to 60 units is (240 + 60k - 240 - 40k)/ (240 + 40k) * 100% = 50%
Step 3: Set up equations:
From step 2, we have two equations:
(240 + 40k - 240 - 20k)/ (240 + 20k) = 66.66%
(240 + 60k - 240 - 40k)/ (240 + 40k) = 50%
Simplifying the equations:
20k/ (240 + 20k) = 66.66%
20k/ (240 + 40k) = 50%
Step 4: Solve the equations:
Solving the first equation:
20k/ (240 + 20k) = 66.66%
20k = 0.6666(240 + 20k)
20k = 159.99 + 13.332k
6.668k = 159.99
k = 23.997
Solving the second equation:
20k/ (240 + 40k) = 50%
20k = 0.5(240 + 40k)
20k = 120 + 20k
0 = 120
Step 5: Determine the optimum daily production:
Since the second equation has no solution, it means that the increase in daily production from 40 units to 60 units
- Selling price of each unit = Rs. 30
- Cost of producing x units = 240 + bx + cx²
- Doubling the daily production from 20 to 40 units increases the daily production cost by 66.66%
- An increase in daily production from 40 to 60 units results in an increase of only 50% in the daily production cost
- Demand is unlimited
To maximize profit, we need to find the optimum daily production:
Step 1: Calculate the daily production cost for different production levels:
Let's assume the daily production is x units.
For 20 units, the cost is 240 + b(20) + c(20)² = 240 + 20b + 400c = 240 + 20(b + 20c) = 240 + 20k (where k = b + 20c)
For 40 units, the cost is 240 + b(40) + c(40)² = 240 + 40b + 1600c = 240 + 40(b + 40c) = 240 + 40k (where k = b + 40c)
For 60 units, the cost is 240 + b(60) + c(60)² = 240 + 60b + 3600c = 240 + 60(b + 60c) = 240 + 60k (where k = b + 60c)
Step 2: Calculate the percentage increase in cost:
The percentage increase in cost from 20 units to 40 units is (240 + 40k - 240 - 20k)/ (240 + 20k) * 100% = 66.66%
The percentage increase in cost from 40 units to 60 units is (240 + 60k - 240 - 40k)/ (240 + 40k) * 100% = 50%
Step 3: Set up equations:
From step 2, we have two equations:
(240 + 40k - 240 - 20k)/ (240 + 20k) = 66.66%
(240 + 60k - 240 - 40k)/ (240 + 40k) = 50%
Simplifying the equations:
20k/ (240 + 20k) = 66.66%
20k/ (240 + 40k) = 50%
Step 4: Solve the equations:
Solving the first equation:
20k/ (240 + 20k) = 66.66%
20k = 0.6666(240 + 20k)
20k = 159.99 + 13.332k
6.668k = 159.99
k = 23.997
Solving the second equation:
20k/ (240 + 40k) = 50%
20k = 0.5(240 + 40k)
20k = 120 + 20k
0 = 120
Step 5: Determine the optimum daily production:
Since the second equation has no solution, it means that the increase in daily production from 40 units to 60 units
|
Explore Courses for Quant exam
|
|
Mr. David manufactures and sells a single product at a fixed price in a niche market. The selling price of each unit is Rs. 30. On the other hand, the cost, in rupees, of producingxunits is 240 +bx+cx2, wherebandcare some constants. Mr. David noticed that doubling the daily production from 20 to 40 units increases the daily production cost by 66.66%. However, an increase in daily production from 40 to 60 units results in an increase of only 50% in the daily production cost. Assume that demand is unlimited and that Mr. David can sell as much as he can produce. His objective is to maximize the profit.How many units should Mr. David produce daily ?a)130b)100c)70d)150e)cannot be determinedCorrect answer is option 'B'. Can you explain this answer?
Question Description
Mr. David manufactures and sells a single product at a fixed price in a niche market. The selling price of each unit is Rs. 30. On the other hand, the cost, in rupees, of producingxunits is 240 +bx+cx2, wherebandcare some constants. Mr. David noticed that doubling the daily production from 20 to 40 units increases the daily production cost by 66.66%. However, an increase in daily production from 40 to 60 units results in an increase of only 50% in the daily production cost. Assume that demand is unlimited and that Mr. David can sell as much as he can produce. His objective is to maximize the profit.How many units should Mr. David produce daily ?a)130b)100c)70d)150e)cannot be determinedCorrect answer is option 'B'. Can you explain this answer? for Quant 2024 is part of Quant preparation. The Question and answers have been prepared according to the Quant exam syllabus. Information about Mr. David manufactures and sells a single product at a fixed price in a niche market. The selling price of each unit is Rs. 30. On the other hand, the cost, in rupees, of producingxunits is 240 +bx+cx2, wherebandcare some constants. Mr. David noticed that doubling the daily production from 20 to 40 units increases the daily production cost by 66.66%. However, an increase in daily production from 40 to 60 units results in an increase of only 50% in the daily production cost. Assume that demand is unlimited and that Mr. David can sell as much as he can produce. His objective is to maximize the profit.How many units should Mr. David produce daily ?a)130b)100c)70d)150e)cannot be determinedCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Quant 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Mr. David manufactures and sells a single product at a fixed price in a niche market. The selling price of each unit is Rs. 30. On the other hand, the cost, in rupees, of producingxunits is 240 +bx+cx2, wherebandcare some constants. Mr. David noticed that doubling the daily production from 20 to 40 units increases the daily production cost by 66.66%. However, an increase in daily production from 40 to 60 units results in an increase of only 50% in the daily production cost. Assume that demand is unlimited and that Mr. David can sell as much as he can produce. His objective is to maximize the profit.How many units should Mr. David produce daily ?a)130b)100c)70d)150e)cannot be determinedCorrect answer is option 'B'. Can you explain this answer?.
Mr. David manufactures and sells a single product at a fixed price in a niche market. The selling price of each unit is Rs. 30. On the other hand, the cost, in rupees, of producingxunits is 240 +bx+cx2, wherebandcare some constants. Mr. David noticed that doubling the daily production from 20 to 40 units increases the daily production cost by 66.66%. However, an increase in daily production from 40 to 60 units results in an increase of only 50% in the daily production cost. Assume that demand is unlimited and that Mr. David can sell as much as he can produce. His objective is to maximize the profit.How many units should Mr. David produce daily ?a)130b)100c)70d)150e)cannot be determinedCorrect answer is option 'B'. Can you explain this answer? for Quant 2024 is part of Quant preparation. The Question and answers have been prepared according to the Quant exam syllabus. Information about Mr. David manufactures and sells a single product at a fixed price in a niche market. The selling price of each unit is Rs. 30. On the other hand, the cost, in rupees, of producingxunits is 240 +bx+cx2, wherebandcare some constants. Mr. David noticed that doubling the daily production from 20 to 40 units increases the daily production cost by 66.66%. However, an increase in daily production from 40 to 60 units results in an increase of only 50% in the daily production cost. Assume that demand is unlimited and that Mr. David can sell as much as he can produce. His objective is to maximize the profit.How many units should Mr. David produce daily ?a)130b)100c)70d)150e)cannot be determinedCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Quant 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Mr. David manufactures and sells a single product at a fixed price in a niche market. The selling price of each unit is Rs. 30. On the other hand, the cost, in rupees, of producingxunits is 240 +bx+cx2, wherebandcare some constants. Mr. David noticed that doubling the daily production from 20 to 40 units increases the daily production cost by 66.66%. However, an increase in daily production from 40 to 60 units results in an increase of only 50% in the daily production cost. Assume that demand is unlimited and that Mr. David can sell as much as he can produce. His objective is to maximize the profit.How many units should Mr. David produce daily ?a)130b)100c)70d)150e)cannot be determinedCorrect answer is option 'B'. Can you explain this answer?.
Solutions for Mr. David manufactures and sells a single product at a fixed price in a niche market. The selling price of each unit is Rs. 30. On the other hand, the cost, in rupees, of producingxunits is 240 +bx+cx2, wherebandcare some constants. Mr. David noticed that doubling the daily production from 20 to 40 units increases the daily production cost by 66.66%. However, an increase in daily production from 40 to 60 units results in an increase of only 50% in the daily production cost. Assume that demand is unlimited and that Mr. David can sell as much as he can produce. His objective is to maximize the profit.How many units should Mr. David produce daily ?a)130b)100c)70d)150e)cannot be determinedCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Quant.
Download more important topics, notes, lectures and mock test series for Quant Exam by signing up for free.
Here you can find the meaning of Mr. David manufactures and sells a single product at a fixed price in a niche market. The selling price of each unit is Rs. 30. On the other hand, the cost, in rupees, of producingxunits is 240 +bx+cx2, wherebandcare some constants. Mr. David noticed that doubling the daily production from 20 to 40 units increases the daily production cost by 66.66%. However, an increase in daily production from 40 to 60 units results in an increase of only 50% in the daily production cost. Assume that demand is unlimited and that Mr. David can sell as much as he can produce. His objective is to maximize the profit.How many units should Mr. David produce daily ?a)130b)100c)70d)150e)cannot be determinedCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Mr. David manufactures and sells a single product at a fixed price in a niche market. The selling price of each unit is Rs. 30. On the other hand, the cost, in rupees, of producingxunits is 240 +bx+cx2, wherebandcare some constants. Mr. David noticed that doubling the daily production from 20 to 40 units increases the daily production cost by 66.66%. However, an increase in daily production from 40 to 60 units results in an increase of only 50% in the daily production cost. Assume that demand is unlimited and that Mr. David can sell as much as he can produce. His objective is to maximize the profit.How many units should Mr. David produce daily ?a)130b)100c)70d)150e)cannot be determinedCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for Mr. David manufactures and sells a single product at a fixed price in a niche market. The selling price of each unit is Rs. 30. On the other hand, the cost, in rupees, of producingxunits is 240 +bx+cx2, wherebandcare some constants. Mr. David noticed that doubling the daily production from 20 to 40 units increases the daily production cost by 66.66%. However, an increase in daily production from 40 to 60 units results in an increase of only 50% in the daily production cost. Assume that demand is unlimited and that Mr. David can sell as much as he can produce. His objective is to maximize the profit.How many units should Mr. David produce daily ?a)130b)100c)70d)150e)cannot be determinedCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of Mr. David manufactures and sells a single product at a fixed price in a niche market. The selling price of each unit is Rs. 30. On the other hand, the cost, in rupees, of producingxunits is 240 +bx+cx2, wherebandcare some constants. Mr. David noticed that doubling the daily production from 20 to 40 units increases the daily production cost by 66.66%. However, an increase in daily production from 40 to 60 units results in an increase of only 50% in the daily production cost. Assume that demand is unlimited and that Mr. David can sell as much as he can produce. His objective is to maximize the profit.How many units should Mr. David produce daily ?a)130b)100c)70d)150e)cannot be determinedCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Mr. David manufactures and sells a single product at a fixed price in a niche market. The selling price of each unit is Rs. 30. On the other hand, the cost, in rupees, of producingxunits is 240 +bx+cx2, wherebandcare some constants. Mr. David noticed that doubling the daily production from 20 to 40 units increases the daily production cost by 66.66%. However, an increase in daily production from 40 to 60 units results in an increase of only 50% in the daily production cost. Assume that demand is unlimited and that Mr. David can sell as much as he can produce. His objective is to maximize the profit.How many units should Mr. David produce daily ?a)130b)100c)70d)150e)cannot be determinedCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Quant tests.
|
|
Explore Courses for Quant exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup