Home
Class 12
MATHS
A furniture dealer deals in only items -...

A furniture dealer deals in only items - tables and chairs. He has `₹ 15,000` to invest and a space to store atmost `60` pieces. A table costs him `₹ 750` and chair `₹ 150` . Suppose he makes x tables any y chairs
The graphical solution of the inequations representing given data is

A

B

C

D

None of these

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem step by step, we need to set up the inequalities based on the given information about the furniture dealer's constraints. ### Step 1: Define Variables Let: - \( x \) = number of tables - \( y \) = number of chairs ### Step 2: Set Up the Inequalities 1. **Investment Constraint**: The dealer has ₹ 15,000 to invest. The cost of each table is ₹ 750 and each chair is ₹ 150. Therefore, the inequality representing the investment constraint is: \[ 750x + 150y \leq 15000 \] Dividing the entire inequality by 150 to simplify: \[ 5x + y \leq 100 \] 2. **Storage Constraint**: The dealer can store at most 60 pieces of furniture (tables and chairs combined). Therefore, the inequality representing the storage constraint is: \[ x + y \leq 60 \] 3. **Non-negativity Constraints**: Since the dealer cannot produce a negative number of tables or chairs, we have: \[ x \geq 0 \quad \text{and} \quad y \geq 0 \] ### Step 3: Graph the Inequalities To graph the inequalities, we need to find the intercepts and plot the lines. 1. **For the first inequality \( 5x + y = 100 \)**: - When \( x = 0 \): \[ y = 100 \quad \text{(Point: (0, 100))} \] - When \( y = 0 \): \[ 5x = 100 \implies x = 20 \quad \text{(Point: (20, 0))} \] 2. **For the second inequality \( x + y = 60 \)**: - When \( x = 0 \): \[ y = 60 \quad \text{(Point: (0, 60))} \] - When \( y = 0 \): \[ x = 60 \quad \text{(Point: (60, 0))} \] ### Step 4: Identify the Feasible Region The feasible region is where all the inequalities overlap. This region is bounded by the lines \( 5x + y = 100 \) and \( x + y = 60 \), and it must also satisfy \( x \geq 0 \) and \( y \geq 0 \). ### Step 5: Find the Intersection Point To find the intersection of the lines \( 5x + y = 100 \) and \( x + y = 60 \), we can solve these equations simultaneously. 1. From \( x + y = 60 \), we can express \( y \): \[ y = 60 - x \] 2. Substitute \( y \) into the first equation: \[ 5x + (60 - x) = 100 \] Simplifying: \[ 5x + 60 - x = 100 \implies 4x + 60 = 100 \implies 4x = 40 \implies x = 10 \] 3. Substitute \( x = 10 \) back into \( y = 60 - x \): \[ y = 60 - 10 = 50 \] ### Step 6: Conclusion Thus, the solution to the problem is: - Number of tables \( x = 10 \) - Number of chairs \( y = 50 \) ### Summary The graphical solution shows that the dealer can purchase a maximum of 10 tables and 50 chairs while adhering to the constraints of investment and storage.
Promotional Banner

Topper's Solved these Questions

  • LINEAR INEQUALITIES

    DISHA PUBLICATION|Exercise Exercise -1 : Concept Builder (Topic 4)|16 Videos
  • LINEAR INEQUALITIES

    DISHA PUBLICATION|Exercise Exercise -2 : Concept Applicator|30 Videos
  • LINEAR INEQUALITIES

    DISHA PUBLICATION|Exercise Exercise -1 :Concept Builder (Topic 2)|2 Videos
  • LIMITS AND DERIVATIVES

    DISHA PUBLICATION|Exercise Exercise -2 : Concept Applicator|30 Videos
  • MATHEMATICAL REASONING

    DISHA PUBLICATION|Exercise Exercise-2 : Concept Applicator|30 Videos

Similar Questions

Explore conceptually related problems

A furniture deals in only two items -tables and chairs, He has 50000 to invest and has storage space of atmost 60 pieces. A table costs t 2500 and a chair t 500. Then, the constraints of the above problem are (where, x is number of tables and y is number of chairs)

A faniture dealer deals in only two itmes - tables and chairs. He has 'Rs. 50000 invest and has storage place of at most 60 pieces. A table costs Rs. 2500 and chair Rs. 500. He estimates that from the sale of one table, he can make a perfect Rs. 250 and that from the sale of one chair a profit of Rs. 75. How many table and chair he should buy from the available money so as to maximise his total profit assuming that he can sell all the items which he buys.

A dealer deals in two items A and B He has Rs. 15000 to invest and a space to store almost 80 pieces Item A costs him Rs 300 and item B costs him Rs. 150 He can sell items A and B at profits of Rs 40 and Rs 25 respectively Assuming that he can sell all that he buys formulate the above as a linear programming prioblem for maximum profit and solve it graphically

A dealer wishes to purchase table fans and ceiling fans. He has Rs. 57,600 to invest, and has space to store 40 items. A table fan costs Rs. 750 and ceiling fan costs Rs. 900. He can make profits of Rs. 70 and Rs. 90 by selling a table fan and a ceiling fan respectively. If dealer sell all the fans that he buy, the formulate this problem as LPP, to maximize the profit.

A dealer deals in two products X & Y. He has ₹1,00,000/- to invest & space to store 80 pieces. Product X costs ₹ 2500/- & product Y costs ₹ 1000/- per unit. Construct the LPP and find the number of units of each product to be purchased.

A dealer wishes to purchase a number of fans and sewing machines. He has only Rs. 5,760 to invest and has a space for at most 20 items. A fan costs him Rs. 360 and a sewing machine Rs. 240. His expectation is that he can sell a fan at a profit of Rs. 22 and a sewing machine at a profit of Rs. 18. Assuming that he can sell all the items that he can buy, how should he invest his money in order to maximize the profit? Formulate this as a linear programming problem and solve it graphically.

A dealer in rural area wishes to purchase a number of sewing machines. He has only Rs. 5,760 to invest and has space for at most 20 items for storage. An electronic sewing machine cost him Rs. 360 and a manually operated sewing machine Rs. 240. He can sell an electronic sewing machine at a profit of Rs. 22 and a manually operated sewing machine at a profit of Rs. 18. Assuming that he can sell all the items that he can buy, how should he invest his money in order to maximize his profit? Make it as a LPP and solve it graphically.

If a furniture dealer estimate that from the sale of one table he can make a profit of ₹ 250 and from the sale of one chair of a profit of ₹ 75 and if x is the sale of chairs and y us the number of tables , then its linear objectives function is

Let x and y are the number of tables and chairs respectively, on which a furniture dealer wants to make profit for the constraints Maximise Z = 250x + 75 y 5x+y le 100, x +y le 60 x ge 0 y ge 0 consider the following graph Then, the maximum profit to the dealer results from buying