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## Feed Corn Yield

tagged by: PankajRai

This topic has 5 member replies
PankajRai Junior | Next Rank: 30 Posts
Joined
18 May 2011
Posted:
12 messages

#### Feed Corn Yield

Sat Jun 18, 2011 9:06 am
What is the approach here:

Scientists have modifi ed feed corn genetically, increasing its resistance to insect pests. Farmers who tried out
the genetically modifi ed corn last season applied less insecticide to their corn fi elds and still got yields
comparable to those they would have gotten with ordinary corn. Ordinary corn seed, however, costs less,
and what these farmers saved on insecticide rarely exceeded their extra costs for seed. Therefore, for most
feed-corn farmers, switching to genetically modifi ed seed would be unlikely to increase profi ts.
Which of the following would it be most useful to know in order to evaluate the argument?
(A) Whether there are insect pests that sometimes reduce feed-corn yields, but against which commonly used
insecticides and the genetic modifi cation are equally ineffective
(B) Whether the price that farmers receive for feed corn has remained steady over the past few years
(C) Whether the insecticides typically used on feed corn tend to be more expensive than insecticides typically
used on other crops
(D) Whether most of the farmers who tried the genetically modifi ed corn last season applied more insecticide
than was actually necessary
(E) Whether, for most farmers who plant feed corn, it is their most profi table crop

amit2k9 Master | Next Rank: 500 Posts
Joined
10 May 2011
Posted:
461 messages
Followed by:
3 members
36
Sun Jun 19, 2011 6:42 am
the savings have to be from lesser usage of insecticides,as the new seeds are costlier.

D nails this by hitting the exact reason.

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vikram4689 Legendary Member
Joined
01 Nov 2009
Posted:
1325 messages
Followed by:
14 members
105
Sun Jun 19, 2011 6:29 am
It has to be D

Approach here: Anything whose answer to yes/no changes the inclination will be the answer. If farmers applied more instecticides then farmers could have made more profit.

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sanabk Master | Next Rank: 500 Posts
Joined
02 Apr 2010
Posted:
174 messages
Followed by:
1 members
6
Sat Jun 18, 2011 2:13 pm
A

madddie Junior | Next Rank: 30 Posts
Joined
07 Jun 2011
Posted:
21 messages
2
Sat Jun 18, 2011 4:02 pm
The answer to this question is D

To solve such kind of questions use a simple strategy
For each option check whether an answer(Yes or No) affects the argument
A>Even if there are insects that render both methods ineffective doesn't change anything
B>Whether the price received has remained constant or fluctuated doesn't affect the comparison
C>Other Crops are out of scope
D>Yes, If the farmers used more insecticide in case of genetically modified crops than was required suggests that the observation in the argument was wrong and that more money could be saved making Genetically Modified Crops Cost-Effective.

ranjithreddy.k9 Senior | Next Rank: 100 Posts
Joined
15 Apr 2011
Posted:
71 messages
1
Sun Jun 19, 2011 5:05 am
my take option B..what is the OA?

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