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Re: An apple farm installed a fish pond on its land to save money and [#permalink]
1) D -0.01 since the change from 0.005 to 0.05
2) The rate of increase is decreasing from 3-4 and from 4-5

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Re: An apple farm installed a fish pond on its land to save money and [#permalink]
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According to my understanding,
The answer to question 1 should be option D, as the average of the decrease of the amount by which the cost of fertilizer per 10 kg of apples sold to the nearest power of 10 would be 0.01. Someone can try to calculate the value(I partially did it and on seeing the option knew D was the answer) or someone can just scan the graph look at the answer options and choose D to be the answer.

The answer to question 2 should be option B i.e. decreasing, as from year 3 to year 4 the number of fish sold does increase but from year 4 to year 5, the value decreases.
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Re: An apple farm installed a fish pond on its land to save money and [#permalink]
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Hey there guys,

Could anyone please explain me what the phrase "the nearest power of 10" means?
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Re: An apple farm installed a fish pond on its land to save money and [#permalink]
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Just curious, what if one where asked to solve for the average amount by which the cost of fertilizer per 10 kg of apples sold decreased from year 1 to year 5?

amount by which the cost of fertilizer per 10 kg of apples sold decreased from year 1 to year 5 = .05 - .005 = .045

divide by five to get average amount by which the cost of fertilizer per 10 kg of apples sold decreased from year 1 to year 5 so 0.045/5=.009.

do folks agree? I find it helpful to solve problems such as these then compare to answer choices
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Re: An apple farm installed a fish pond on its land to save money and [#permalink]
The combo chart is misleading I think. GMAC should have used 2 separate charts instead for better readability.
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Re: An apple farm installed a fish pond on its land to save money and [#permalink]
mborski

What the 5 observations of the difference for which you are calculating the average of the 5 years?
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Re: An apple farm installed a fish pond on its land to save money and [#permalink]
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Rytthhm wrote:
mborski

What the 5 observations of the difference for which you are calculating the average of the 5 years?


Rytthhm short video solution here (2:08):


Attachments

2023-12-21 15_21_24-No name - 19 December 2023 (4).mp4 - VLC media player.png
2023-12-21 15_21_24-No name - 19 December 2023 (4).mp4 - VLC media player.png [ 3.49 MiB | Viewed 4270 times ]


Originally posted by GMATCoachBen on 21 Dec 2023, 16:21.
Last edited by GMATCoachBen on 02 Jan 2024, 16:29, edited 2 times in total.
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Re: An apple farm installed a fish pond on its land to save money and [#permalink]
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Sajjad1994 I saw this one in OG 2023-2024, do you want to re-tag the source? It says "GMAT Pill" now. Thanks!
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Re: An apple farm installed a fish pond on its land to save money and [#permalink]
GMATCoachBen shuld we not divide the change over the 5 years by 4 and not 5 since we have 4 values?
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Re: An apple farm installed a fish pond on its land to save money and [#permalink]
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Elite097 wrote:
GMATCoachBen shuld we not divide the change over the 5 years by 4 and not 5 since we have 4 values?


Elite097 Yes, you are correct! I mentioned in the video that there are 4 decreases (year 1 to 2, year 2 to 3, year 3 to 4, and year 4 to 5).

However, it makes no difference here, since the answers are so spread out. It's very helpful to round and approximate when we see that the answers are spread out, or when the stem says "nearest to" or "approximately"!
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Re: An apple farm installed a fish pond on its land to save money and [#permalink]
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