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# A new machine for harvesting corn will allow rows to be planted only f

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A new machine for harvesting corn will allow rows to be planted only f  [#permalink]

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Updated on: 14 Oct 2017, 20:50
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Which of the following most logically completes the argument?

A new machine for harvesting corn will allow rows to be planted only fifteen inches apart, instead of the usual thirty inches. Corn planted this closely will produce lower yields per plant. Nevertheless, the new machine will allow corn growers to double their profits per acre because ________.

(A) with the closer spacing of the rows, the growing corn plants will quickly form a dense canopy of leaves, which will, by shading the ground, minimize the need for costly weed control and irrigation

(B) with the closer spacing of the rows, corn plants will be forced to grow taller because of increased competition for sunlight from neighboring corn plants

(C) with the larger number of plants growing per acre, more fertilizer will be required

(D) with the spacing between rows cut by half, the number of plants grown per acre will almost double

(E) with the closer spacing of the rows, the acreage on which corn is planted will be utilized much more intensively than it was before, requiring more frequent fallow years in which corn fields are left unplanted

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Originally posted by Swagatalakshmi on 01 Mar 2007, 01:00.
Last edited by hazelnut on 14 Oct 2017, 20:50, edited 3 times in total.
Edited the question.
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Re: A new machine for harvesting corn will allow rows to be planted only f  [#permalink]

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25 Jan 2015, 22:17
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Which of the following most logically completes the argument?
A new machine for harvesting corn will allow rows to be planted only fifteen inches apart, instead of the usual thirty inches. Corn planted this closely will produce lower yields per plant. Nevertheless, the new machine will allow corn growers to double their profits per acre because __________.

A. with the closer spacing of the rows, the growing corn plants will quickly form a dense canopy of leaves, which will, by shading the ground, minimize the need for costly weed control and irrigation

B. with the closer spacing of the rows, corn plants will be forced to grow taller because of increased competition for sunlight from neighboring corn plants

C. with the larger number of plants growing per acre, more fertilizer will be required

D. with the spacing between rows cut by half, the number of plants grown per acre will almost double

E. with the closer spacing of the rows, the acreage on which corn is planted will be utilized much more intensively than it was before, requiring more frequent fallow years in which corn fields are left unplanted

A. Remember that you don't need to prove the conclusion of the argument -- you just need to pick the statement that adds force to it.
i.e., the exact mathematical content of "double" = x2 is not significant. in fact, the specific numbers in CR problems almost *never* matter; usually, the only thing that matters is relative comparisons -- for instance, quantity #1 is bigger than quantity #2, or quantity #1 is bigger than it was expected to be, etc.

in this passage, the only thing that matters is that the profits are higher than what could be explained by the plant yields. (i.e., there are twice as many plants per acre, but their yield will be depressed -- so the total output won't be twice as much per acre.)
the "2x" doesn't matter; what matters is that this figure is more than would be explained by plant yields alone. therefore, you have to find some other factor, not having to do with plant yield, that would increase profits.

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Re: A new machine for harvesting corn will allow rows to be planted only f  [#permalink]

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10 Jun 2013, 05:47
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1
Hi - I will digest the paragraph point by point - with D in mind...

Here is D:

with the spacing between rows cut by half, the number of plants grown per acre will almost double

Which of the following most logically completes the argument?
Ok. So we are looking for something that is not mentioned in the passage, but is a logical conclusion of it....

A new machine for harvesting corn will allow rows to be planted only fifteen inches apart, instead of the usual thirty inches.
So logically this would suggest that, without any other factors that the yield would approximately double - half the space between the rows double the crops, double the yield.

Cornplanted this closely will produce lower yields per plant.
BUT - this will not happen. Yields will not double for a reason not explained (overcrowding maybe?)

Nevertheless, the new machine will allow corn growers to double their profits per acre because .
Profits will double. We know yield will not double (we don't know if it will go up, stay the same or even decrease), so we need to find an extra explanation to complete this argument. At the moment we don't know why profit will increase.

OK. So Back to D

with the spacing between rows cut by half, the number of plants grown per acre will almost double

Does this logically complete the argument? Does it explain the contradication that yield will not double, but profits will? No it doesn't.

In fact it simply re-states something that we've managed to work out for ourselves.

Hope that helps...

James
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Re: A new machine for harvesting corn will allow rows to be planted only f  [#permalink]

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01 Mar 2007, 01:34
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I pick A.

B: it is not stated how the profitability is affected by the increased hight of the plant....

C: this will decrease profits

D: Almost double, however the yield is lower per plant. So there is no way for double profits...

E: This will dercrease profits....
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Re: A new machine for harvesting corn will allow rows to be planted only f  [#permalink]

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01 Mar 2007, 02:35
yeah..one more A.

D is a trap. We are not sure whether the more of plants will have yields commensurate with the number.
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Re: A new machine for harvesting corn will allow rows to be planted only f  [#permalink]

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01 Mar 2007, 04:49
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A - the only one that directly impacts profits
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Re: A new machine for harvesting corn will allow rows to be planted only f  [#permalink]

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01 Mar 2007, 09:37
(A) as well.

lower yield per plant will be adjusted by lower production cost.
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Re: A new machine for harvesting corn will allow rows to be planted only f  [#permalink]

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03 Mar 2007, 00:50
I do not have OA, but I selected A
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Re: A new machine for harvesting corn will allow rows to be planted only f  [#permalink]

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05 Mar 2007, 10:12
Yes, it is A or D, but I pick D.

How can we know that possiblile savings from irigation will double the profits? We don't know what share of total costs irrigation takes.

It makes more sense that if the number of plants is doubled it will lead to ALMOST double increase in profit. ALMOST bcoz yield per acre would be lower.

So I will go with D
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Re: A new machine for harvesting corn will allow rows to be planted only f  [#permalink]

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05 Mar 2007, 21:14
2
A!!!

D is wrong "almost double" kills it. Also, it says each plant will yield less, so even if the plants double, they wont be as productive.

A eliminates costs therefore profits will increase.
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Re: A new machine for harvesting corn will allow rows to be planted only f  [#permalink]

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06 Mar 2007, 02:23
terp26 wrote:
A!!!

D is wrong "almost double" kills it. Also, it says each plant will yield less, so even if the plants double, they wont be as productive.

A eliminates costs therefore profits will increase.

It does say "profit will increase". The stem says "profits will almost double". How do you know that savings on irrigation will double their profit? Do you know how much they spend on irrigation?
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Re: A new machine for harvesting corn will allow rows to be planted only f  [#permalink]

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29 Mar 2011, 09:44
I am bringing to life that great question. Basically, the choice to make is between A and D.
A: mentions cost, but it can be the case that savings are just 10%
D: restates that was already said in the stymulus. Therefore, it is wrong?
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Re: A new machine for harvesting corn will allow rows to be planted only f  [#permalink]

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29 Mar 2011, 20:34
Even if A is picked, one has to make assumptions!
But among the choices A seems to be the best bet!!!
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Re: A new machine for harvesting corn will allow rows to be planted only f  [#permalink]

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31 Mar 2013, 17:39
This is one of the most absurd question i have ever seen.The choice is between A and D.With A being the official answer,dare may I ask what is wrong in selecting B ?If we have to make assumptions then someone can assume that taller corn is better i.e. more yield.
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Re: A new machine for harvesting corn will allow rows to be planted only f  [#permalink]

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01 Apr 2013, 11:44
1
Hello arkle,

The problem with B is that it points out that the corn plants will grow taller. This does not imply that the corn will be taller which might lead to increased productivity. It just implies that the structure of the plant will be taller. Farmers are interested in selling the corn and not corn plants. Hence, B makes little sense.

Let me know if you need any further clarification.

Thanks and Regards,
Kris
arkle wrote:
This is one of the most absurd question i have ever seen.The choice is between A and D.With A being the official answer,dare may I ask what is wrong in selecting B ?If we have to make assumptions then someone can assume that taller corn is better i.e. more yield.
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Re: A new machine for harvesting corn will allow rows to be planted only f  [#permalink]

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09 Jun 2013, 10:55
Can somebody help me by giving a suitable reason for not selecting D?
I read all the above justifications and reasoning, but am not convinced
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Re: A new machine for harvesting corn will allow rows to be planted only f  [#permalink]

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10 Jun 2013, 05:50
plumber250 wrote:
Hi - I will digest the paragraph point by point - with D in mind...

Here is D:

with the spacing between rows cut by half, the number of plants grown per acre will almost double

Which of the following most logically completes the argument?
Ok. So we are looking for something that is not mentioned in the passage, but is a logical conclusion of it....

A new machine for harvesting corn will allow rows to be planted only fifteen inches apart, instead of the usual thirty inches.
So logically this would suggest that, without any other factors that the yield would approximately double - half the space between the rows double the crops, double the yield.

Cornplanted this closely will produce lower yields per plant.
BUT - this will not happen. Yields will not double for a reason not explained (overcrowding maybe?)

Nevertheless, the new machine will allow corn growers to double their profits per acre because .
Profits will double. We know yield will not double (we don't know if it will go up, stay the same or even decrease), so we need to find an extra explanation to complete this argument. At the moment we don't know why profit will increase.

OK. So Back to D

with the spacing between rows cut by half, the number of plants grown per acre will almost double

Does this logically complete the argument? Does it explain the contradication that yield will not double, but profits will? No it doesn't.

In fact it simply re-states something that we've managed to work out for ourselves.

Hope that helps...

James

Nice and thorough,
keeping this in mind, can i assume that any answer choice which is trying to reiterate the meaning present in the passage should not be the answer?
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Re: A new machine for harvesting corn will allow rows to be planted only f  [#permalink]

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10 Jun 2013, 05:54
3
Hi - In my opinion the most important sentence in any CR is the first one that defines what type of question it is.

Here we are looking at a 'logically completes the argument' type one.

Here - yes you can always assume that the answer will not be a re-statement. It will be something that carries on the argument you have (you should be able to spot just from the passage that the argument is incomplete) and makes it all co-herent.

Do you have one of the standard Verbal books - they should give you a proper run down by question type.

James
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Re: A new machine for harvesting corn will allow rows to be planted only f  [#permalink]

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05 Jul 2013, 08:50
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Approach: Anytime I see profitability, I think Profit = Revenue - Costs. Revenue is driven by Price and Quantity and do not Costs - Variable and Fixed (typically never goes in this level of depth for GMAT, per what I have seen) . (Obviously, there are many many more real world situations but just a framework to think through)

Here, if the quantity is decreasing, I am expecting something that will impact the price e.g. higher quality or something that will hit the costs e.g. costs of operations e.g. weed control

A. with the closer spacing of the rows, the growing corn plants will quickly form a dense canopy of leaves, which will, by shading the ground, minimize the need for costly weed control and irrigation

Spot on. Costs go down, hopefully significantly. Hold it for now – check other answers.

B. with the closer spacing of the rows, corn plants will be forced to grow taller because of increased competition for sunlight from neighboring corn plants

So what? How does this say anything about price, quantity, and costs? Irrelevant.

C. with the larger number of plants growing per acre, more fertilizer will be required

Lower yield, higher costs, profit down. Eliminate.

D. with the spacing between rows cut by half, the number of plants grown per acre will almost double

True but combined with lower yield, does this do anything for profits? Rather, can we be conclusive?

E. with the closer spacing of the rows, the acreage on which corn is planted will be utilized much more intensively than it was before, requiring more frequent fallow years in which corn fields are left unplanted.

Same as C, answer is A
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Re: A new machine for harvesting corn will allow rows to be planted only f  [#permalink]

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07 Jul 2013, 09:41
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A for me

As for D, even if the number of plants doubles, the argument already said that the yield wil reduce. So, increased plants doesn't exactly mean increased grain output.

while A gives you a clear cut way of cost reduction. Profit = Revenue - Cost
Re: A new machine for harvesting corn will allow rows to be planted only f &nbs [#permalink] 07 Jul 2013, 09:41

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