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MathNet 2026 — Part 02 Question 143

Math Olympiad Vault · MathNet 2026 — Part 02

Question 143

The price of beans - the table and graph, given below, show the evolution of the average price of three types of beans, $A$, $B$ e $C$, in the food exchange during the first four months of a certain year: of these 3 types, those that present, respectively, the highest and lowest percentage growth in the price in this period are:
  1. $A$ e $B$
  2. $A$ e $C$
  3. $B$ e $C$
  4. $C$ e $A$
  5. $C$ e $B$

    Question illustration



    | | jan | feb | sea | apr |
    | :-: | :-----: | :-----: | :-----: | :------: |
    | A | 65,67 | 83,33 | 96,67 | 103,33 |
    | B | 73,30 | 80,50 | 99,55 | 109,50 |
    | C | 64,50 | 71,57 | 89,55 | 100,00 |