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Mathematics Grade 12 Unit 5: MATHEMATICAL APPLICATIONS IN BUSINESS

national exam questions have come from this unit. It runs 112 pages; one careful study pass takes about 13.5 hours, and its difficulty is harder among Mathematics units. Each section below lists the questions set from it, with the year, and opens the page that teaches it.

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5.1 Basic Mathematical Concepts in Business · read p. 305
  • 2018 E.C., Q37 – A shop sale a shoe at a price of Birr 1225 with a 30% discount notice. How much was the original price of the shoe in Birr?
  • 2017 E.C., Q32 – A spherical fuel container with radius 3m is filled with fuel. What is the amount (in m$^3$) of fuel in the container?
  • 2017 E.C., Q44 – A company offers a discount of 25% on one of its product for promotion. What is a regular price of the product if it is purchased for Birr 99?
  • 2017 E.C., Q34 – A school has 6,000 students. The ratio of female students to the total number of students is 2:3. Which one of the following is true about the students in the school?
  • 2013 E.C., Q22 – If the owner can sell goods at a constant price and get a profit of 100 Birr per unit of the two quantities of goods produced by the processes i) and ii), what will be the maximum profit generated?
  • 2013 E.C., Q45 – A shop sales a pack of 20 articles for 5,500 Birt. It planned to clear the articles during a holiday. If the shop sells each item for 220 Birt, what percent discount has it made?
5.2 Time Value of Money · read p. 324
  • 2017 E.C., Q31 – A worker of a company borrowed Birr 100,000 from the company's credit and saving association. She agreed to pay 10% of the loan during the agreement and on the remaining amount to pay Birr 3000 (monthly plus interest) in
  • 2016 E.C., Q37 – A college graduate plans to deposit Birr 2000 each year starting from the first day of the year into a saving account that pays 8% interest compounded annually. How much will he/she have just after the first day of the t
  • 2016 E.C., Q36 – The following table presents the number of traffic accidents in a certain city per year for five consecutive years from 2019 to 2023. Year | 2019 | 2020 | 2021 | 2022 | 2023 Number of Accidents | 3500 | 2750 | 2850 | 350
  • 2015 E.C., Q38 – Which one of the following statements is true?
  • 2015 E.C., Q26 – A woman wants to buy a new car that costs Birr 1,100,000. She paid Birr 870,000 and agreed with the seller to pay Birr 10,000 per month to cover the remaining amount at 0% interest rate. How many months will it take the
  • 2014 E.C., Q40 – A couple own a house that values Birr 2,000,000. The house added Birr 10,000 in the first year, Birr 10,800 in the second year, and so on. What is the value of the house at the end of 6 years?
  • 2014 E.C., Q47 – If Btu 20,000 is deposited in a Bank at a rate of 12% interest compounded monthly, how long will it take to double the amount?
  • 2014 E.C., Q5 – Consider the ellipse given by the equation 4(x + 1)² + (y - 1)² = 16. Which one of the following is the standard form of the equation of the ellipse? + 42 (x+1)2 = 12 (y−1)2 1 + 42 (x+1)2 = 42 (y−1)2 1
  • 2014 E.C., Q28 – One special perfume costs a cosmetic shop Birr 2,100. If the shop desires a 25% markup rate based on the selling price, then which one of the following should be set as a selling price for this perfume?
5.3 Saving, Investing and Borrowing Money · read p. 371
  • 2018 E.C., Q5 – Which one of the following is a source of cash loan?
  • 2018 E.C., Q23 – Which of the following statements is true in borrowing money?
  • 2017 E.C., Q23 – Which of the following is NOT a valid reason for a person to save money?
  • 2016 E.C., Q25 – Which one of the following is NOT a valid reason for saving?
  • 2014 E.C., Q50 – A painter buys 5 liters of paint for Birr 36 and 6 liters of the same brand paint for Birr 43. Which of the following is true?
  • 2014 E.C., Q12 – You happened to notice that the 8% sales tax that your father paid on the new Television Set came to Birr 3,800. How much did the Television Set cost him?
  • 2013 E.C., Q1 – On the average, which of the following is less significant as a factor to save money in a saving institution in our context?
  • 2013 E.C., Q6 – In leasing a building, tax is required from rental income. The following is the tax rate on a total amount of rent per year in Birr. Amount taxable income Up to 1,800 1,801 – 7,800 7,801 – 16,800 16,801 – 28,200 Tax rate
  • 2013 E.C., Q5 – The amount of sales in a business enterprise is directly proportional to the number of items sold and inversely to the amount of tax paid, which is 5% of the total amount sold. If the sales amount to 15000 Birr and the n