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LearningTheRopes
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In 1986, the city of Los Diablos had 20 days on which air pollution re 01 Sep 2023, 10:00
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abhimahna
jedit
There is a lot of dispute about the OA. Could the experts please review the choices and provide an explanation.

Hi jedit ,

B is the correct answer and has been very well explained above.

Let me know your specific doubts so that I can help get those resolved.

Just remember one thing:

The question is about LEAST explain.

B is saying they got more accurate. If they got more accurate, they should have increased the number of days rather than decreasing the count.
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---

While I personally think this is a great question with a clear answer, I would not agree that accuracy would necessarily increase the number of days. How can we know that the inaccuracy of the prior tool was not that it recorded an air pollution level higher than that which had actually occurred (so implementation would decrease the number of days)? The issue with this answer is that it could be either or (ambiguity). The remaining choices are much more clear in their underlying reasoning and leave little room for ambiguity.
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In 1986, the city of Los Diablos had 20 days on which air pollution re 16 Nov 2024, 14:09
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Hello from the GMAT Club VerbalBot!

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