e-GMAT Logo
NEUR
N

For each of 3 grains-corn, soybeans, and wheat—the graph shows the monthly average export price per tonne (metric ton) for...

GMAT Graphics Interpretation : (GI) Questions

Source: Mock
Graphics Interpretation
GI - Other
HARD
...
...
Notes
Post a Query
Graph showing monthly average export prices for corn, soybeans, and wheat

For each of 3 grains-corn, soybeans, and wheat—the graph shows the monthly average export price per tonne (metric ton) for a certain nation last year as a percentage of the average export price for that grain in January.


Select from each drop-down menu the option that creates the most accurate statement based on the information provided.

The month after the monthly average export price forwas at its maximum for last year, the actual average monthly export price for that grain decreased byof the maximum, to the nearest percent.
Solution

Owning The Dataset

Table 1: Text Analysis

Text Component Literal Content Simple Interpretation
Subject Matter 3 grains—corn, soybeans, and wheat Examines export prices for three major grains
Measurement Monthly average export price per tonne (metric ton) Price is calculated as a monthly average per metric ton
Geographic Context For a certain nation Data pertains to one unspecified country
Time Period Last year Data covers all 12 months of the previous year
Data Presentation As a percentage of the average export price for that grain in January All values indexed so January = 100%; subsequent months are relative

Table 2: Chart Analysis

Chart Component Description Insight
Chart Type Line chart with three lines (one for each grain, differentiated by style) Directly compares trends among the three grains
X-axis Months (January–December) Illustrates seasonality and timing of peaks/declines
Y-axis Percentage (from 80% to 130%, anchored at January = 100%) Tracks price deviations from the January baseline
Series Distinction Corn (solid), Soybeans (dashed), Wheat (dotted) Enables grain-by-grain visual analysis
Key Peaks Wheat peaks in February (127%), Corn and Soybeans peak in September (125%, 105%) Each grain has a distinct peak timing and magnitude
Post-Peak Drop Sharpest declines follow each peak: Wheat drops Feb→Mar; Corn/Soybeans Sep→Oct Immediate significant corrections after each grain's peak
Return to Baseline By December, all grains return close to 100% Suggests cyclical or seasonal normalization

Key Insights

  1. Each grain's export price, after reaching its yearly peak, experiences its steepest single-month drop in the following month: wheat from February to March, corn and soybeans from September to October.
  2. Corn exhibits the largest post-peak single-month decline, falling from 125% in September to 100% in October—a 25-point (20%) drop.
  3. Soybeans decline from 105% to 90% after their September peak, a 15-point (about 14%) fall.
  4. Wheat reaches the year's highest value (127% in February) and experiences a sharp but comparatively smaller percentage fall to 122% (about 4% decline).

Step-by-Step Solution

Question 1: Identifying the Grain with the Highest Maximum Export Price

Complete Statement:

The month after the monthly average export price for [BLANK 1] was at its maximum for last year

Breaking Down the Statement
  • Statement Breakdown 1:
    • Key Phrase: monthly average export price
    • Meaning: The average price per tonne of exported grain for each month
    • Relation to Chart: The chart shows monthly export prices indexed to January's price (100%) for Wheat, Corn, and Soybeans
    • Important Implications: We are comparing relative prices for different grains over the months
  • Statement Breakdown 2:
    • Key Phrase: was at its maximum for last year
    • Meaning: The highest export price value a grain reached over the course of the year
    • Relation to Chart: This requires finding the peak (highest point) on each grain's line in the chart
    • Important Implications: The maximum value and its month may differ for each grain
  • What is needed: Which specific grain (wheat, corn, or soybeans) had the highest maximum price point in any month over the year
Solution:
  • Condensed Solution Implementation:
    Review the chart and compare the maximum points for Wheat, Corn, and Soybeans; select the grain with the highest value.
  • Necessary Data points:
    Wheat: 127% (February), Corn: 125% (September), Soybeans: 105% (September)
  • Calculations Estimations:
    Wheat's maximum: 127%; Corn's maximum: 125%; Soybeans' maximum: 105%. Highest is Wheat at 127%, but the question appears to be about the grain for which the percent decrease is a given value that matches one of the answer choices (see next question).
  • Comparison to Answer Choices:
    The choice must fit both the maximum and the calculation for percent decrease in the next month. Using data, Corn is the only grain whose percent decrease after the maximum matches a valid answer choice.
FINAL ANSWER Blank 1: Corn

Question 2: Calculating the Percentage Decrease after the Maximum

Complete Statement:

the actual average monthly export price for that grain decreased by [BLANK 2] of the maximum, to the nearest percent.

Breaking Down the Statement
  • Statement Breakdown 1:
    • Key Phrase: decreased by [X%] of the maximum
    • Meaning: Express the change as a percent of the maximum value (i.e., (peak - following month)/peak × 100%)
    • Relation to Chart: Check values for the month of the maximum and the following month for the identified grain
  • Statement Breakdown 2:
    • Key Phrase: to the nearest percent
    • Meaning: Round your answer to the closest whole percent
    • Relation to Chart: After calculating the percentage decrease, express as a whole number
  • What is needed: What percentage of corn's maximum price did the monthly price decrease the following month (September to October)
Solution:
  • Condensed Solution Implementation:
    Look at corn's maximum (September: 125%) and the following month's price (October: 100%), and apply the formula for percent decrease.
  • Necessary Data points:
    Corn in September: 125%. Corn in October: 100%.
  • Calculations Estimations:
    \(\\frac{125\% - 100\%}{125\%} = \\frac{25\%}{125\%} = 0.2\), which is 20%.
  • Comparison to Answer Choices:
    This matches the answer choice '20%'
FINAL ANSWER Blank 2: 20%

Summary

The problem requires identifying which grain experienced a notable price drop after its peak, and quantifying that drop as a percentage of its maximum price. Corn peaked at 125% in September and fell to 100% in October, a 20% decrease of its maximum value. Thus, the answers are 'Corn' for the first blank and '20%' for the second.

Question Independence Analysis

These questions are dependent. The correct answer to the second blank relies on identifying the correct grain in the first blank because the decrease percentage calculation uses the maximum and subsequent values for that specific grain.

Answer Choices Explained
The month after the monthly average export price for
1A
Soybeans
1B
Corn
1C
Wheat
was at its maximum for last year, the actual average monthly export price for that grain decreased by
2A
15%
2B
20%
2C
25%
of the maximum, to the nearest percent.
Rate this Solution
Tell us what you think about this solution
...
...
Forum Discussions
Start a new discussion
Post
Load More
Similar Questions
Finding similar questions...
Previous Attempts
Loading attempts...
Similar Questions
Finding similar questions...
Parallel Question Generator
Create AI-generated questions with similar patterns to master this question type.