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Rahul_Sharma23
GMAT Focus 1: 695 Q87 V83 DI83 
Posts: 114
02 Jul 2025, 22:47
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If the accidents caused due to other factors has risen sharply in number then the percentage of accidents caused by drivers ignoring traffic lights will decrease even if it is same in number as it was the previous year. Option B clearly highlights the logical flaw
Bunuel
02 Jul 2025, 22:53
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assumed causation flaw : that the resident assumes the percentage decrease in accidents directly resulted from the police acting on inquests. there's no evidence of police action or a link between the inquests and the outcome. the conclusion assumes a cause (police action) purely based on a result (percentage drop), without proving that cause occurred or that it led to the effect.
the second flaw is percentage vs absolute numbers. even if the percentage of traffic light–related accidents dropped, the actual number may have stayed the same or even increased if total accidents rose. drawing a conclusion about improvement based only on percentage without knowing the base is logically flawed.
option a talks about misclassification, which questions data accuracy but doesn’t touch either flaw.
option c questions the reliability of inquests as a data source, which again doesn’t touch the logic.
option d talks about inquests rising due to other accidents, which is irrelevant to the main argument.
option e is about residents’ beliefs, which doesn’t affect the logical structure.
only option b addresses the logic. if other accident types rose sharply, then even if traffic-light-related accidents dropped as a percentage, the overall safety situation may be worse. this directly targets the conclusion and exposes both flaws: that perceived improvement may not be real (percent vs absolute), and that no causal link between the claimed action and outcome is established.
correct answer is b
the second flaw is percentage vs absolute numbers. even if the percentage of traffic light–related accidents dropped, the actual number may have stayed the same or even increased if total accidents rose. drawing a conclusion about improvement based only on percentage without knowing the base is logically flawed.
option a talks about misclassification, which questions data accuracy but doesn’t touch either flaw.
option c questions the reliability of inquests as a data source, which again doesn’t touch the logic.
option d talks about inquests rising due to other accidents, which is irrelevant to the main argument.
option e is about residents’ beliefs, which doesn’t affect the logical structure.
only option b addresses the logic. if other accident types rose sharply, then even if traffic-light-related accidents dropped as a percentage, the overall safety situation may be worse. this directly targets the conclusion and exposes both flaws: that perceived improvement may not be real (percent vs absolute), and that no causal link between the claimed action and outcome is established.
correct answer is b
02 Jul 2025, 22:59
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Premise:
This year, the percentage of accidents caused by drivers ignoring traffic lights has fallen.
Conclusion:
Therefore, the traffic police responded to inquests and took effective measures, leading to a decrease in preventable traffic safety issues.
Flaw:
The argument assumes that the decline in this specific type of accident is due to police action — without ruling out other explanations for the decline.
This is a causal flaw: correlation ≠ causation.
(A) Incorrect – Challenges data accuracy, but the argument is about trend over time, not classification error in a single year.
(B) Correct – Weakens the conclusion by suggesting the percentage of traffic-light accidents fell only because other accident types increased, not because fewer violations occurred.
(C) Incorrect – The argument doesn’t use inquests to count accidents, but to explain police motivation.
(D) Irrelevant – Doesn’t challenge the link between reduced traffic-light violations and police measures.
(E) Incorrect – Residents’ beliefs don’t affect the official cause data cited in the argument.
Option:(B)
It directly weakens the causal conclusion by showing the drop in percentage may result from an increase in other accidents, not from improved enforcement or police action.
This year, the percentage of accidents caused by drivers ignoring traffic lights has fallen.
Conclusion:
Therefore, the traffic police responded to inquests and took effective measures, leading to a decrease in preventable traffic safety issues.
Flaw:
The argument assumes that the decline in this specific type of accident is due to police action — without ruling out other explanations for the decline.
This is a causal flaw: correlation ≠ causation.
(A) Incorrect – Challenges data accuracy, but the argument is about trend over time, not classification error in a single year.
(B) Correct – Weakens the conclusion by suggesting the percentage of traffic-light accidents fell only because other accident types increased, not because fewer violations occurred.
(C) Incorrect – The argument doesn’t use inquests to count accidents, but to explain police motivation.
(D) Irrelevant – Doesn’t challenge the link between reduced traffic-light violations and police measures.
(E) Incorrect – Residents’ beliefs don’t affect the official cause data cited in the argument.
Option:(B)
It directly weakens the causal conclusion by showing the drop in percentage may result from an increase in other accidents, not from improved enforcement or police action.
