Bar Graphs, Pie Charts, Line Graphs

Bar Graphs, Pie Charts, Line Graphs

TGM Original Questions

The following bar graph shows the unit cost and unit selling price of six items in a store.

  1. Using the data from the bar graph above, complete the table below.
    List item image
    The bar graph below shows the quantities sold (in hundreds) of the six items from July to September.
    List item image
  2. Using the data above, complete the pie chart below by subdividing the grey part according to the sales of items D, E and F. Hence state clearly the quantity sold for each item and the degree of each sector.
    List item image
  3. Complete the table below, which shows the total profit earned by each of the six items from July to September.
    List item image
  4. Based on your answers in (iii), state which item has the highest total profit and which item has the lowest total profit.
  5. Given that from July to September, the item that has the highest total profit is fan, while the item that has the lowest total profit is scarf, give one suggestion for the store’s selling plan for the next quarter (October to December), based on the following assumptions, respectively:
    1. without considering any other factors;

    2. considering the monthly average temperature of the region where the store is located, which is shown in the line graph below.
      Sub-item image

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Answer:(i) Selling prices for A–F: \(18,5,40,12,35,21\) dollars; unit profits: \(6,2,20,5,20,12\) dollars (ii) Quantities: \(920,1400,80,520,280,400\); sectors: \(92^\circ,140^\circ,8^\circ,52^\circ,28^\circ,40^\circ\) (iii) Total profits: \(5520,2800,1600,2600,5600,4800\) dollars (iv) Highest: item E; lowest: item C (v)(a) Stock more fans and fewer scarves (v)(b) With temperatures falling, stock more scarves and fewer fans

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