8.- A small construction company specializes in the construction andsale of family homes. The firm offers two basic types of houses, modelA and model B. Model A houses require 4,000-man hours, 2 tons ofstone, and 2,000 board feet of lumber. Model B houses require 10,000hours of work, 3 tons of stone, and 2,000 board feet of lumber. Due tolong lead times for ordering supplies and a shortage of skilled and semi-skilled workers in the area, the company will be forced to rely on its ownresources on the next construction season. It has 400,000 hours of work,150 tons of stone and 200,000 boards of lumber. What is thecombination of Model A and Model B, that the firm should build if ModelA has profits of $3,000 per unit and Model B $6,000 per unit?a) Formulate the objective function and the restrictions.

The firm should build a combination of Model A and Model B that would maximize its profits. In this…

Answered: 8.- A small construction company…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

Section: Chapter Questions

Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...

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4) The cost driver for demand creation activity is: a. Increase in sales b. Number of orders c. Value of stock d. Value of materials stored
Tuff-Rider, Inc., manufactures touring bikes and mountain bikes in a variety of frame sizes, colors, and component combinations. Identical bicycles are produced in lots of 110. The projected demand, lot size, and time standards are shown in the following table: i Item Demand forecast Lot size Standard processing time Standard setup time Touring 4,000 units/year 130 units 0.20 hour/unit 2 hours/lot Mountain 10,000 units/year 110 units 0.50 hour/unit 3 hours/lot The shop currently works 8 hours a day, 5 days a week, 48 weeks a year. It operates five workstations, each producing one bicycle in the time shown in the table. The shop maintains a 15 percent capacity cushion. How many workstations will be required next year to meet expected demand without using overtime and without decreasing the firm's current capacity cushion? The number of workstations required next year is. (Enter your response rounded up to the next whole number.)
Mauro Products distributes a single product, a woven basket whose selling price is $28 per unit and whose variable expense is $24 per unit. The company's monthly fixed expense is $4,800. Required: 1. Calculate the company's break-even point in unit sales. 2. Calculate the company's break-even point in dollar sales. (Do not round intermediate calculations.) 3. If the company's fixed expenses increase by $600, what would become the new break-even point in unit sales? In dollar sales? (Do not round intermediate calculations.) 1. Break-even point in unit sales baskets 2. Break-even point in dollar sales 3. Break-even point in unit sales baskets Break-even point in dollar sales
DJA Trucking Co. owns several truck used in hauling crushed stones from three different plants to three road projects in Pampanga. The contractor in charge of the project gives the company the ff. Projec A B C F/T X Y Z Requirement per week 150 175 140 A B P100 P200 150 175 200 500 C P75 225 125 Plants X Y Z Available per week 145 160 160 Compute for the optimal hauling schedule and the total transportation costs. (Use stepping stone and Least Cost Method (minimum entry method))
Demand for stereo headphones and music players for joggers has caused Nina Industries to grow almost 50 percent over the past year. The number of joggers continues to expand, so Nina expects demand for headsets to also expand, because, as yet, no safety laws have been passed to prevent joggers from wearing them. Demand for the players for this year was as follows: MONTH DEMAND (UNITS) January 4,150 February 4,250 March 3,950 April 4,350 May 4,950 June 4,650 July 5,250 August 4,850 September 5,350 October 5,650 November 6,250 December 5,950 a. Using linear regression analysis, what would you estimate demand to be for each month next year? Using a spreadsheet, follow the general format in Exhibit 3.8. (Do not round intermediate calculations. Round your answers to 2 decimal places.) b. To be reasonably confident of meeting demand, Nina decides to use 3 standard errors of estimate for safety. How many additional units should be held to meet this…
Using the information in Problem(The demand for subassembly Sis 100 units in week 7.Each unit ofS requires 1 unit ofT and 2 units ofU. Each unit ofT requires I unit ofY, 2 units ofW, and 1 unit of X. Finally, eachunit of U requires 2 units of Y and 3 units of Z. One firm manufacturesall items. It takes 2 weeks to make S, 1 week to make T, 2 weeks to make U, 2 weeks to make Y, 3 weeks to make W,I week to make X, 2 weeks to make Y, and I week to make Z.a) Construct a product structure. Identify all levels, parents, and components.b) Prepare a time-phased product structure. ), construct agross material requirements plan.
12. Zan Azlett and Angela Zesiger have joined forces to start A&Z Lettuce Products, a processor of packaged shredded lettuce for institutional use. Zan has years of food processing experience, and Angela has extensive commercial food preparation experience. The process will consist of opening crates of lettuce and then sorting, washing, slicing, preserving, and finally packaging the prepared lettuce. Together, with help from vendors, they think they can adequately estimate demand, fixed costs, revenues, and variable cost per bag of lettuce. They think a largely manual process will have monthly fixed costs of $36,000 and variable costs of $1.75 per bag. A more mechanized process will have fixed costs of $72,000 per month with variable costs of $1.25 per bag. They expect to sell the shredded lettuce for $2.75 per bag. Part 2 a) The break-even quantity in units for the manual process = ______ bags (round your response to the nearest whole number). b) The revenue for…
Using the information in Problem (The demand for subassembly Sis 100 units in week 7.Each unit ofS requires 1 unit ofT and 2 units ofU. Each unit ofT requires I unit ofY, 2 units ofW, and 1 unit of X. Finally, eachunit of U requires 2 units of Y and 3 units of Z. One firm manufacturesall items. It takes 2 weeks to make S, 1 week to make T, 2 weeks to make U, 2 weeks to make Y, 3 weeks to make W,I week to make X, 2 weeks to make Y, and I week to make Z.a) Construct a product structure. Identify all levels, parents, and components.b) Prepare a time-phased product structure. ), construct a netmaterial requirements plan using the following on-hand inventory.
7. The following were taken from the records of Sauyo Company: Year Cost of Beginning Ending Good Sold Inventory Inventory (In Pesos) (In Pesos) 340,500 25,300 30,200 2. 435,040 30,200 35,400 520,400 35,400 36,400 4 547,500 36,400 38,300 600,700 38,300 39,000 Required: Compute the inventory turn-over for year 5. Round off answer to whole number.
Please complete the sup part: e,f and g. 1.B&H needs to decide how to manage its inventory of cameras. The demand for cameras at B&H is 200 cameras per week. Each time that B&H places an order for a new shipment of cameras, it must pay $80 in fixed processing fees. A camera costs B&H $60 to purchase. The cost for B&H to hold a camera in its store for one week is $4. Assume that the lead time for the delivery of a camera is 0 weeks.a. Suppose that B&H places orders for cameras in quantities of 50 cameras at a time and places a new order for cameras each time that it runs out. Draw a graph showing the number of cameras that B&H has on-hand in inventory at each point in time up until the time when it places its fourth-order. Label the points in time at which B&H places a new order. Assume that B&H places its first order for 50 cameras on day 0.b. Suppose again that B&H places orders for 50 cameras at a time. What will be B&H’s average holding…
Electro Fans has just received an order for one thousand 20˝ fans due in week 7. Each fan consists of a housing assembly, two grills and a fan assembly. The housing assembly consists of a frame, two supports and a handle. The following table gives lead times, on-hand inventory, and scheduled receipts. Table 1.1: Lead time and quantity on hand Item Lead Time Qty on hand Lot size# Scheduled receipt 20˝ Fan Housing Frame Supports (2) Handle Grills (2) Fan Assembly 1 1 2 1 1 2 3 80 90 - 50 400 200* 150 - - - 100 400 450 - 50 fan assembly in week 2 * In week 3 it was found that 50% of the on hand inventory of the grills was damaged. # Items without any lot size given should be considered as lot-for-lot. (i) Construct a product structure. (ii) Construct a time-phased product structure. (iii) Prepare a net requirement plan.
Heather Adams, production manager for a Colorado exercise equipment manufacturer, needs to schedule an order for 50 UltimaSteppers, which are to be shipped in week 8. Subscripts indicate quantity required for each parent. Assume lot-for-lot ordering. Item Lead Time On-Hand Inventory Components Stepper 2 20 A(2), B(2), C(2) A 1 10 D(1), F(2) B 2 20 E(2), F(3) C 2 10 D(2), E(1) D 1 15 E 2 5 F 2 20 c) Develop a net material requirements plan for F (enter your responses as whole numbers). Week Lead Time Item 1 2 3 4 5 6 7 8 (weeks) F Gross req 2 On hand Net req enter your response here enter your response here Order receipt enter your response here enter your…

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