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Sub 505 Level|   Evaluate Argument|                  
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KarishmaB
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Traverton s city council wants to minimize the city s 07 Oct 2021, 05:18
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Sneha2021
Hi Experts,
VeritasKarishma GMATNinja

I understand that A is useful to determine switching to LED is a good idea.

I usually get confused with variance test.

(A) Whether the expected service life of LED arrays is at least as long as that of the currently used incandescent bulbs
If we consider YES - The expected service life of LED arrays is at least as long as that of the currently used incandescent bulbs. It will strengthen the argument considering other benefits of LED (energy efficient, same purchase cost)
If we consider NO - The expected service life of LED arrays is NOT at least as long as that of the currently used incandescent bulbs. The life can be shorter or longer. It will strengthen or weaken the argument depending on the answer.
What's the negation of "At least as long as"?
Thanks!
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Negation of "at least as long as" is "not as long as".
When I say that life of LED is at least as long as life of incandescent, I am saying that LEDs will last as much or more.
So negation of this is that LEDs will last fewer months/years.

"No" will tell you that LED life will be shorter. Hence it weakens the plan of switching to LEDs.
"Yes" strengthens the plan.
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Traverton s city council wants to minimize the city s 11 Mar 2025, 20:22
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