Must be TrueDiff: Hardest
Logic Breakdown
Passage Summary: Fishing tech kept getting better, allowing boats to take a bigger percentage of the world's fish every year. Even so, the actual weight of fish caught stopped growing after 1995.
Reasoning: From 1960 to 2010, improved technology allowed the fishing industry to catch an increasing percentage of the total ocean fish population annually. While the total weight of the catch rose until 1995, it remained stagnant or decreased thereafter.
Analysis: This is a mathematical inference problem. If the industry is taking a larger 'slice' of the total fish 'pie' every year (due to better tech), but the actual weight of that slice stopped increasing after 1995, the only logical conclusion is that the 'pie' itself—the total population of fish in the ocean—must have decreased. If your percentage of the total goes up but your absolute amount stays the same or goes down, the total must be shrinking. Look for an answer that reflects this decline in the total fish population after 1995.
Reasoning: From 1960 to 2010, improved technology allowed the fishing industry to catch an increasing percentage of the total ocean fish population annually. While the total weight of the catch rose until 1995, it remained stagnant or decreased thereafter.
Analysis: This is a mathematical inference problem. If the industry is taking a larger 'slice' of the total fish 'pie' every year (due to better tech), but the actual weight of that slice stopped increasing after 1995, the only logical conclusion is that the 'pie' itself—the total population of fish in the ocean—must have decreased. If your percentage of the total goes up but your absolute amount stays the same or goes down, the total must be shrinking. Look for an answer that reflects this decline in the total fish population after 1995.
Passage Stimulus
Passage Redacted
Unlock Full Passage25.If the statements above are true, which one of the following must also be true?
Correct Answer
C
Because the share harvested (P) rose each year from 1995–2010 while the actual harvest by weight (H) did not rise, the total ocean fish biomass (T) must have declined during that period; otherwise the ratio H/T could not have increased.
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