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Home Question Bank Economics Archive 2025 January 19

Economics Questions from Jan 19,2025

Browse the Economics Q&A Archive for Jan 19,2025, featuring a collection of homework questions and answers from this day. Find detailed solutions to enhance your understanding.

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17. Find the IRR of an investment having initial cash outflow of Rs. 213,000. The cash inflows during the first, second, third and fourth years are expected to be Rs. 65,200, Rs. 96,000, Rs. 73,100 and Rs. 55,400 respectively. A) \( 12.76 \% \) B) \( 14.05 \% \) C) \( 0.1276 \% \) D) \( 0.1405 \% \) 45. Mr. Ali invests Rs. 400,000 at the start of each quarter @ \( 12 \% \) for 8 years. What will be the total amount after 8 years? A) Rs. \( 4,919,877 \) B) Rs.5,510,263 C) Rs. \( 211,001,103 \) D) Rs. 21631137 According to the Truth in Lending Act, which of the following is the bank NOT obligated to inform you of? Which method for calculating a credit card balance takes into account both the purchases and the payments made during the current billing cycle? Lana has a credit card that uses the adjusted balance method. For the first 10 days of one of her 30 -day billing cycles, her balance was \( \$ 2800 \). She then made a payment of \( \$ 1200 \), so her balance decreased to \( \$ 1600 \), and it remained that amount for the next 10 days. Lana then made a purchase for \( \$ 500 \), so her balance for the last 10 days of the billing cycle was \( \$ 2100 \). If her credit card's APR is \( 35 \% \), how much was Lana charged in interest for the billing cycle? What is botal product and marginal product and averay prodect EXAMPLE 7. Determine the total demand \( x \) for industries 1,2 , and 3 , given the matrix of technical coefficients A and the final demand vector \( \mathbf{B} \). \[ \mathbf{A}=\left[\begin{array}{lll}0.3 & 0.4 & 0.1 \\ 0.5 & 0.2 & 0.6 \\ 0.1 & 0.3 & 0.1\end{array}\right] \quad \mathbf{B}=\left[\begin{array}{l}20 \\ 10 \\ 30\end{array}\right] \] QUESTION 5 [4 MARKS] Mrs Visagie wants to employ a company that will maintain her yard by cutting the grass. She obtains quotations from two companies, company \( A \) and company \( B \). On Annexure \( A \) you will find a graph showing the cost that companies \( A \) and \( B \) respectively charge for working a certain amount of hours. Study the graph and answer. the questions that follow: 5.1 Ms Visagie estimates it will take 3 hours to cut her lawn. Which cortipany will be (1) cheapest in this case? 5.2 Company \( A \) and \( B \) will charge the same amount for a certain number of hours worked. (1) What is this number of hours? 5.3 Ms Visagie's neighbour wants to make us of company B. What will company B charge (I) if it takes 1,5 hours to cut her grass? 5.4 Write down a general equation (formula) to calculate the cost for Company \( A \) in the (1) format: \( \begin{array}{ll}2.2 & \text { Convert an interest rate of } 10 \% \text { p.a. compounded quarterly to an annual effective } \\ \text { interest rate. } \\ \text { A lawnmower was traded in for R236 after } 10 \text { years. The depreciation was } \\ \text { calculated at } 9,2 \% \text { p.a. on a straight-line basis. } \\ \text { Determine the cost of the lawnmower 10 years ago. }\end{array} \) b) Berechne die Zinssätze \( p_{1}, p_{2} \) und \( p_{3} \). c) Zeichne im Diagramm eine Gerade für den Zinssatz von \( 2 \% \) ein. d) Berechne den Zinssatz, der bei einem Kapital von CHF \( 40^{\prime} 000 \) einen Nettojahreszins von CHF 325 ergibt und zeichne die Gerade für diesen Zinssatz im Diagramm ein.
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