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MLF week 9 - real exam questions

23 questions pulled from past papers whose wording matches this week's topics, newest first, duplicates removed. Pick your answers, then press Check answers. Figures and answer keys are the originals.

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MLF End Term · 13 Sep 2026 · open the full paper
Practice 1MSQ3 marksselect all that apply
Consider a constrained optimization problem in with a single inequality constraint: At the point which of the following is/are feasible directions at
MLF End Term · 10 May 2026 · open the full paper
Practice 2MSQ3 marksselect all that apply
Consider a constrained optimization problem in with a single inequality constraint as given below: Which of the following is/are feasible directions at the point question figure ?
MLF End Term · 10 May 2026 · open the full paper
Practice 3SA4 marks
Using the method of Lagrange multipliers solve the following constrained optimization problem: question figure Find the minimum value of the objective function. You can assume that the problem does have a global minimum. Your answer should be an integer.
MLF End Term · 10 May 2026 · open the full paper
Practice 4MSQ2 marksselect all that apply
Which of the following options is/are correct
  1. Set of all global minima of a convex function forms a convex set.
  2. Gradient descent algorithm is useful in constrained optimization problem.
  3. Union of two convex sets will result in a convex set always.
  4. A function cannot be a convex function if its domain is not a convex set.
MLF End Term · 10 May 2026 · open the full paper
Practice 5MCQ2 marks
Comprehension passage for this question
A logistics company transports goods using two types of vehicles: trucks ( ) and vans ( ). Each truck consumes 6 litres of fuel and requires 4 hours of driver time per trip. Each van consumes 3 litres of fuel and requires 5 hours of driver time per trip. The company must complete at least 120 litres worth of fuel usage and at least 200 driver hours per week. The cost per truck trip is Rs. 80 and per van trip is Rs. 50. Note: The company wants to fulfill these requirements at the lowest possible cost. Based on the above data, answer the given subquestions.
Which of the following correctly represents the objective function and constraints for the given problem
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MLF End Term · 10 May 2026 · open the full paper
Practice 6MCQ1 mark
Comprehension passage for this question
A logistics company transports goods using two types of vehicles: trucks ( ) and vans ( ). Each truck consumes 6 litres of fuel and requires 4 hours of driver time per trip. Each van consumes 3 litres of fuel and requires 5 hours of driver time per trip. The company must complete at least 120 litres worth of fuel usage and at least 200 driver hours per week. The cost per truck trip is Rs. 80 and per van trip is Rs. 50. Note: The company wants to fulfill these requirements at the lowest possible cost. Based on the above data, answer the given subquestions.
Which of the following is the correct Lagrangian function for the given problem
  1. question figure
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  4. question figure
MLF End Term · 10 May 2026 · open the full paper
Practice 7MCQ1 mark
Comprehension passage for this question
A logistics company transports goods using two types of vehicles: trucks ( ) and vans ( ). Each truck consumes 6 litres of fuel and requires 4 hours of driver time per trip. Each van consumes 3 litres of fuel and requires 5 hours of driver time per trip. The company must complete at least 120 litres worth of fuel usage and at least 200 driver hours per week. The cost per truck trip is Rs. 80 and per van trip is Rs. 50. Note: The company wants to fulfill these requirements at the lowest possible cost. Based on the above data, answer the given subquestions.
Which of the following correctly represents the complementary slackness conditions of the KKT conditions
MLF End Term · 21 Dec 2025 · open the full paper
Practice 8SA3 marks
Using the method of Lagrange multipliers, find a point on the circle centered at with radius that is closest to the point . If this distance is , enter as your answer. Your answer should be an integer.
MLF End Term · 21 Dec 2025 · open the full paper
Practice 9MSQ2 marksselect all that apply
Comprehension passage for this question
Consider the following constrained optimization problem: question figure Answer the sub-questions assuming that we take a very small step in the direction of interest.
At the point which of the following is/are feasible directions
MLF End Term · 21 Dec 2025 · open the full paper
Practice 10SA3 marks
Consider the following constrained optimization problem: question figure If question figure corresponds to the global minimum, find question figure . Enter your answer correct to one decimal place.
MLF End Term · 31 Aug 2025 · open the full paper
Practice 11MCQ2 marks
Comprehension passage for this question
question figure
Let A = (x, y) be a point in the set S which is closest to the origin. Choose the correct Primal optimization problem from the following.
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MLF End Term · 31 Aug 2025 · open the full paper
Practice 12MSQ2 marksselect all that apply
Comprehension passage for this question
question figure
Which of the following options is/are true ?
  1. S is a convex set.
  2. The objective function of the Primal optimization problem from the previousquestion number no 9 is a convex function.
  3. The objective function of the Primal optimization problem from the previousquestion number no 9 is a concave function.
  4. None of these
MLF End Term · 13 Apr 2025 · open the full paper
Practice 13MSQ2 marksselect all that apply
Comprehension passage for this question
Based on the above data, answer the given subquestions. question figure
Which of the following statements correctly represents the Karush-Kuhn-Tucker (KKT) conditions for the given optimization problem?
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MLF End Term · 13 Apr 2025 · open the full paper
Practice 14MSQ3 marksselect all that apply
Comprehension passage for this question
Based on the above data, answer the given subquestions. question figure
Which of the following statements are correct based on the KKT conditions and the solution to the optimization problem?
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MLF End Term · 13 Apr 2025 · open the full paper
Practice 15MSQ2 marksselect all that apply
Comprehension passage for this question
Based on the above data, answer the given subquestions. question figure
Which of the following statements correctly represent the Karush-Kuhn-Tucker (KKT) conditions for the given optimization problem?
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MLF End Term · 01 Sep 2024 · open the full paper
Practice 16MCQ2 marks
Comprehension passage for this question
A company produces two types of products P1 and P2. The cost price per unit of P1 and P2 are ₹2 and ₹3, respectively. The production process requires two types of resources: labor hours and machine hours. Each unit of p1 requires 2 labor hours and 1 machine hour, while each unit of P2 requires 1 labor hour and 3 machine hours. The company has constraints on the availability of labor and machine hours, which are 80 and 90 hours, respectively. Use the above information to answer the given sub-questions.
Choose the correct Primal optimization problem from the following.
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MLF End Term · 28 Apr 2024 · open the full paper
Practice 17MSQ2 marksselect all that apply
Comprehension passage for this question
A person went to the market to buy hens. Old hens can be bought for ₹ 200.00 each but young hens can be bought for ₹ 500.00 each. The old hens lay 3 eggs per week and the young hens lay 5 eggs per week. Each egg costs Rs. 11. A hen costs ₹ 50.00 per week to feed. If the financial constraint is ₹ 8000 per week to buy hens and the capacity constraint is that the total number of hens bought cannot exceed 20 per week. The objective is to earn more profit. Let x represent the number of old hens and y represent the number of young hens. Use the above information to answer the given subquestions
If (x*, y*) is the optimal solution of the primal, u1 and u2 are Lagrange multipliers then which of the following options is/are true?
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MLF End Term · 03 Sep 2023 · open the full paper
Practice 18MCQ3 marks
A consumer wants to maximize his utility subject to some constraints. He consumes two goods g1 and g2 and the utility function is the sum of g1 and g2. His budget is Rs.100. The per unit price of goods g1 and g2 are Rs.3 and Rs.4 respectively. Chose the correct optimization problem.
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MLF End Term · 30 Apr 2023 · open the full paper
Practice 19MCQ4 marks
A consumer wants to maximize his utility subject to some constraints. He consumes two goods x and y and the utility function is the product of x and y. His budget is Rs.200. The per unit price of goods x and y are Rs.3 and Rs.4 respectively. Choose the correct optimization problem.
  1. maximize x + y subject to 3x + 4y = 200
  2. maximize xy subject to 3x + 4y = 200
  3. maximize xy subject to 3x − 4y = 200
  4. maximize x + y subject to 3x − 4y = 200
MLF End Term · 11 Dec 2022 · open the full paper
Practice 20MSQ3 marksselect all that apply
Comprehension passage for this question
A company manufactures two types of products, A and B. Market research and available resources have indicated that the combined production level should not exceed 1200 products per week and demand for products of type B is at most half of that times production of products of type A. Further, the production level of products of type A can exceed three times the production of products of other type at most 600 units. If the company makes profits of $12 and $16 per products respectively on products A and B. If the number of products manufactured of type A and type B are x and y respectively, then formulate this problem so that the company can maximize the profit. Based on the above data answer the given subquestions
The constraint function for the problem is
  1. question figure
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  4. question figure
MLF End Term · 11 Dec 2022 · open the full paper
Practice 21MSQ3 marksselect all that apply
Comprehension passage for this question
A company manufactures two types of products, A and B. Market research and available resources have indicated that the combined production level should not exceed 1200 products per week and demand for products of type B is at most half of that times production of products of type A. Further, the production level of products of type A can exceed three times the production of products of other type at most 600 units. If the company makes profits of $12 and $16 per products respectively on products A and B. If the number of products manufactured of type A and type B are x and y respectively, then formulate this problem so that the company can maximize the profit. Based on the above data, answer the given subquestions.
The constraint function for the problem is
  1. question figure
  2. question figure
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  4. question figure
MLF End Term · 07 Aug 2022 · open the full paper
Practice 22MCQ2 marks
Comprehension passage for this question
A manufacturing company makes two types of television sets; one is smart led and the other is normal led. The company has resources to make at most 300 sets a week. It takes Rs 1800 to make a smart led set and Rs 2700 to make a normal led set. The company can spend not more than Rs 648000 a week to make television sets. If it makes a profit of Rs 510 per smart led and Rs 675 per normal led. Based on the above data, answer the given subquestions.
The objective function to maximise the profit for the given problem is
  1. 510x + 675y
  2. 410x + 675y
  3. 510x + 575y
  4. 102x + 135y
MLF End Term · 07 Aug 2022 · open the full paper
Practice 23MSQ3 marksselect all that apply
Comprehension passage for this question
A manufacturing company makes two types of television sets; one is smart led and the other is normal led. The company has resources to make at most 300 sets a week. It takes Rs 1800 to make a smart led set and Rs 2700 to make a normal led set. The company can spend not more than Rs 648000 a week to make television sets. If it makes a profit of Rs 510 per smart led and Rs 675 per normal led. Based on the above data, answer the given subquestions.
The constraints for the given problem is
  1. x + y ≤ 300
  2. 2x + 3y ≤ 720
  3. x + 3y ≤ 120
  4. x ≥ 0, y ≥ 0