# Questions and Answers - Kenyaplex.com

## Q&A Categories

- History and Government
- Christian Religious Education (CRE)
- IRE
- Mathematics
- Physics
- Biology
- Geography
- Chemistry
- English
- English Literature
- Commercial and Administrative Law
- Business Studies
- Diploma in ECDE
- Certificate in ECDE
- Computer Studies
- Computer Science
- Kiswahili
- Agricuture
- Home Science
- Accounting
- Economics
- Financial Accounting
- Commercial Law
- Entrepreneurship and Communication

**Do you have Q&A pairs? Post them here**

**26335 Questions** View: All | Solved | Unsolved

##### Search Results...

- Outline four importance of prescribed fire in Conservation and maintenance of Range land ecosystems.
**(Solved)**Outline four importance of prescribed fire in Conservation and maintenance of Range land ecosystems.

Date posted: January 11, 2019. Answers (1)

- Outline eight negative impacts of weeds in agro-ecosystems.
**(Solved)**Outline eight negative impacts of weeds in agro-ecosystems.

Date posted: January 11, 2019. Answers (1)

- Distinguish between a weed, Noxious plant and invasive species.
**(Solved)**Distinguish between a weed, Noxious plant and invasive species.

Date posted: January 11, 2019. Answers (1)

- Discuss briefly the basic concept of range land management.
**(Solved)**Discuss briefly the basic concept of range land management.

Date posted: January 11, 2019. Answers (1)

- Discuss seven importance of range lands in Kenya today.
**(Solved)**Discuss seven importance of range lands in Kenya today.

Date posted: January 11, 2019. Answers (1)

- Outline at least six range land resources found in Kenya range lands.
**(Solved)**Outline at least six range land resources found in Kenya range lands.

Date posted: January 11, 2019. Answers (1)

- Give four properties of good laundry detergents?
**(Solved)**Give four properties of good laundry detergents?

Date posted: January 11, 2019. Answers (1)

- List qualities to consider when choosing pegs.
**(Solved)**List qualities to consider when choosing pegs.

Date posted: January 11, 2019. Answers (1)

- Describe the procedure of working an overlaid seam.
**(Solved)**Describe the procedure of working an overlaid seam.

Date posted: January 11, 2019. Answers (1)

- List factors to consider when working stitches for buttonholes?
**(Solved)**List factors to consider when working stitches for buttonholes?

Date posted: January 11, 2019. Answers (1)

- Differentiate between wear and tear.
**(Solved)**Differentiate between wear and tear.

Date posted: January 11, 2019. Answers (1)

- State qualities to consider while choosing a good clothesline?
**(Solved)**State qualities to consider while choosing a good clothesline?

Date posted: January 11, 2019. Answers (1)

- Zainab is an accountant at Samitsi Ltd. During the year ended 30th December 2014, she prepared a trial balance which did not balance. The debit...
Zainab is an accountant at Samitsi Ltd. During the year ended 30th December 2014, she prepared a trial balance which did not balance. The debit side was lesser with sh 2240. She posted the difference to a suspense account. She then prepared the financial statements for the year. Net profit was 105,000 Upon investigating, the following errors were later discovered Purchases day book had been under cast by sh 3 million Cash sh 1560,000 received from a debtor had only been recorded in the cash book Discount received sh 150,000 had been recorded on the wrong side of the creditors account Closing stock had been under cast by sh 10 million Salary expense sh 850,000 had not been recorded Cash account balance was under cast by sh 500,000 An amount of sh 850,000 for private expense by the business owner had been debited to sundry expense account Required; Journal entries to correct the above errors; Suspense account; Statement of corrected net profit. (13 marks)

Date posted: January 11, 2019.

- a) A small company will be introducing a new line of lightweight bicycle frames to be made from special
aluminium alloy and steel alloy. The frames...
**(Solved)**a) A small company will be introducing a new line of lightweight bicycle frames to be made from special aluminium alloy and steel alloy. The frames will be produced in two models, deluxe and professional. The anticipated unit profits are currently Sh.1,000 for a deluxe frame and Sh.1,500 for a professional frame. The number of kilogrammes of each alloy needed per frame is summarized in the table below. A supplier delivers 100 kilogrammes of the aluminium alloy and 80 kilogrammes of the steel alloy weekly. -------------Aluminium alloy---Steel alloy Deluxe--------2----------------3 Professional--4----------------2 Required: i) Determine the optimal weekly production schedule. ii) Within what limits must the unit profits lie for each of the frames for this solution to remain optimal? b) Explain the limitations of the technique you have used to solve part (a) above.

Date posted: January 11, 2019. Answers (1)

- a) A baker makes two products; large loaves and small round loaves. He can sell up to 280 of the large
loaves and up to 400...
**(Solved)**a) A baker makes two products; large loaves and small round loaves. He can sell up to 280 of the large loaves and up to 400 small round loaves per day. Each large loaf occupies 0.01m

^{3}of shelf space, each small loaf occupies 0.008m^{3}of space, and there is 4m^{3}of shelf space available. There are 8 hours available each night for baking, and he can produce large loaves at the rate of 40 per hour, and small loaves at the rate of 80 per hour. The profit on each large loaf is Sh.5.00 and Sh.3.00 profit on the small round loaf. Required: In order to maximize profits, how many large and small round loaves should he produce? b) Summarize the procedure for solving the kind of quantitative technique you have used to solve part (a) above.Date posted: January 11, 2019. Answers (1)

- Regal Investments has just received instructions from a client to invest in two shares; one an airline share, the other an insurance share. The total...
**(Solved)**Regal Investments has just received instructions from a client to invest in two shares; one an airline share, the other an insurance share. The total maximum appreciation in share value over the next year is to be maximized subject to the following restrictions: - the total investment shall not exceed Sh.100,000 - at most Sh.40,000 is to be invested in the insurance shares - quarterly dividends must total at least Sh.2,600 The airline share is currently selling for Sh.40 per share and its quarterly dividend is Sh.1 per share. The insurance share is currently selling for Sh.50 per share and the quarterly dividend is Sh.1.50 per share. Regal's analysts predict that over the next year, the value of the airline share will increase by Sh.2 per share and the value of the insurance share will increase by Sh.3 per share. A computer software provided the following part solution output: Objective Function Value = 5,400 Required: a) Formulate the above problem. b) Explain what reduced cost and dual prices columns above mean. c) How should the client‟s money be invested to satisfy the restrictions? d) Suppose Regal‟s estimate of the airline shares appreciation is an error, within what limits must the actual appreciation lie for the answer in (c) above to remain optimal?

Date posted: January 11, 2019. Answers (1)

- An endowment fund manager is attempting to determine a “best” investment portfolio and is considering six
alternative investments. The following table indicates point estimates for the...
**(Solved)**An endowment fund manager is attempting to determine a “best” investment portfolio and is considering six alternative investments. The following table indicates point estimates for the price per share, the annual growth rate in the price per share, the annual dividend per share, and a measure of the risk associated with each investment.

Date posted: January 11, 2019. Answers (1)

- A pension fund wishes to invest in one or more of six possible investments. Financial analysts have estimated the present value of effective annual estimate....
**(Solved)**A pension fund wishes to invest in one or more of six possible investments. Financial analysts have estimated the present value of effective annual estimate. The data in this table indicate that the present value of investing USD 10,000 in alternative 1 is the sum of USD 1,200 (0.12 x USD 10,000) for year 1, USD 1,000 (0.10 x 10,000) for year 2, and USD 800 (0.08 x USD 10,0000 for year 3, for a total present value of USD 3,000. Management has decided that USD300,000 will be invested. At least USD50,000 is to be invested in alternative 2 and no more than USD40,000 in alternative 5. Total investment in alternative 4 and 6 should not exceed USD75,000, as these are risky investments. If the objective is to maximize the present value of total dollar return for the three-year period, formulate the LP model for how much capital to invest in each alternative. Can you comment on how relevant each underlying LP assumption is to this problem?

Date posted: January 11, 2019. Answers (1)

- A company wishes to purchase additional machinery in a capital expansion program. Three types of machinesare to be purchased: A, B, and C. Machine A...
**(Solved)**A company wishes to purchase additional machinery in a capital expansion program. Three types of machines are to be purchased: A, B, and C. Machine A costs USD 25,000 and requires 200 square feet of floor space for its operation. Machine B costs USD 30,000 and requires 250 square feet of floor space. Machine C costs USD 22,000 and requires 175 square feet of floor space. The total budget for this expansion program is USD 350,000. The maximum available floor space for the new machines is 4,000 square feet. The company also wishes to purchase at least one of each machine. Given that machines A, B, and C can produce 250, 260, and 225 pieces per day, the company wants to determine how many machines of each type it should purchase so as to maximize daily output (in units) from the new machines. a) Explicitly define your decision variables and formulate the LP model. b) Assess the validity of the four underlying LP assumptions for this problem. c) Solve and analyse the problem using a computer package

Date posted: January 11, 2019. Answers (1)

- Solve the following problem using the simplex method:
**(Solved)**(a) Solve the following problem using the simplex method: b) Verify your solution by solving graphically and relate tableaux to specific corner points. c) Determine the shadow prices and interpret their meaning.

Date posted: January 11, 2019. Answers (1)

- The number of plumbing repair jobs by Manji Plumbing Service in each of the last nine months in
Nakuru town are listed below:
Month---Jobs
March 353
April 387
May 342
June...
**(Solved)**The number of plumbing repair jobs by Manji Plumbing Service in each of the last nine months in Nakuru town are listed below: Month---Jobs March 353 April 387 May 342 June 374 July 396 August 409 September 399 October 412 November 408 Required: Required: a) i) Forecast the number of repair jobs Manji Plumbing Service will perform in December. Use the least squares method. Note: ii) What is your forecast for December using a three-period weighted moving average with weights of 0.6, 0.3, and 0.1. How does it compare with your forecast from part (i) above? b) i) What are the aims of time series analysis? ii) Describe what a season is in the context of a time series and give some examples. iii) Describe the stages in obtaining a time series trend using the method of semi averages. iv) Why must forecasts be treated with caution?

Date posted: January 11, 2019. Answers (1)

- Find the moving average of the time series of quarterly production (in tons) of coffee in an Indian State as given below. After that, come...
**(Solved)**Find the moving average of the time series of quarterly production (in tons) of coffee in an Indian State as given below. After that, come up with a trend line to approximate the production in future. Production (in Tons)

Date posted: January 11, 2019. Answers (1)

- As a tax consultant to the Government of your country, you have been asked to estimate an empirical
model on the demand for income tax evasion...
**(Solved)**As a tax consultant to the Government of your country, you have been asked to estimate an empirical model on the demand for income tax evasion (ITE) in the country. You think true income (TI), Marginal tax rate (MTR), penalty rate (PR) and probability of detection (PROB) will be important variables. Using national time-series annual data from 1967 to 1995, you estimate the following regression equation: The calculated t – statistics are reported in parentheses, and figures are in shillings. Required: i) Write down the population theoretical empirical model on the demand for income tax evasion (ITE). ii) Provide a theoretical justification of the empirical model specification in (i) above, that is, expected signs of the regression coefficients and why. iii) Interpret the constant term (-52.59), coefficient for true income (33.44) and coefficient of probability of detection (-1.48) in the context of the problem. iv) Before collecting data, the principal tax collector and her staff believed that penalty rate had a negative influence on income tax evasion and should therefore be used as leverage on those who evade tax. From the regression results, should this be the case? Why? (Note: critical t-value = - 1.701 at 0.05 level of significance)

Date posted: January 10, 2019. Answers (1)

- Briefly but clearly, explain the difference, if any, between regression analysis and correlation analysis.
**(Solved)**Briefly but clearly, explain the difference, if any, between regression analysis and correlation analysis.

Date posted: January 10, 2019. Answers (1)

- Kenya Graduate School (KGS) offers a variety of graduate courses. However, its main emphasis has been on
information science (IS) courses. Due to the laboratory equipment...
**(Solved)**Kenya Graduate School (KGS) offers a variety of graduate courses. However, its main emphasis has been on information science (IS) courses. Due to the laboratory equipment requirements for IS courses, KGS has to estimate in advance the expected students enrolments. Over the last 5 years, the students enrolments, by quarter, has been: Required: a) Determine the estimates, by quarter, for year 1996. Justify the method you use. b) If linear multiple regression were to be used in order to determine the predicting equation, what other variables would be included? c) How would the expected enrolments be compared to the actual enrolments?

Date posted: January 10, 2019. Answers (1)

- Describe four advantages of Top-Down Design method
**(Solved)**Describe four advantages of Top-Down Design method

Date posted: January 10, 2019. Answers (1)

- Discuss the elements of a Flowchart
**(Solved)**Discuss the elements of a Flowchart

Date posted: January 10, 2019. Answers (1)

- Define the term flow chart
**(Solved)**Define the term flow chart

Date posted: January 10, 2019. Answers (1)

- State the properties of an Algorithm
**(Solved)**State the properties of an Algorithm

Date posted: January 10, 2019. Answers (1)

- Define the term Algorithm as used in computer programming methodology
**(Solved)**Define the term Algorithm as used in computer programming methodology

Date posted: January 10, 2019. Answers (1)