Two different cages of rabbits were given injections of mild : GMAT Critical Reasoning (CR)
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# Two different cages of rabbits were given injections of mild

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Two different cages of rabbits were given injections of mild [#permalink]

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15 Sep 2010, 19:22
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Two different cages of rabbits were given injections of mild toxins. In addition, the first cage was also exposed to cold temperature; three- fourths of the rabbits in this cage became sick. Only one-fifth of the rabbits in the normal temperature cage became sick. The lab technicians concluded that cold temperature increases the likelihood of illness in rabbits.

The technicians’ conclusion logically depends on which of the following assumptions?

a) The exposure to cold temperature acted as a catalyst for the toxins which made more rabbits in the first cage sick.
b) The toxins given to the rabbits in the two cages were of varying strength.
c) Injecting the rabbits with toxins made them sick.
d) Even without the exposure to cold temperature, the rabbits in the first cage would have probably gotten sick.
e) Even exposing rabbits to slight variances in temperature is likely to induce illness.
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15 Sep 2010, 19:31
I would go for A.

b) The toxins given to the rabbits in the two cages were of varying strength.
Doesn't help the conclusion.

c) Injecting the rabbits with toxins made them sick.
If so, then all the rabbits in both cages should have fallen sick.

d) Even without the exposure to cold temperature, the rabbits in the first cage would have probably gotten sick.
Irrelevant.

e) Even exposing rabbits to slight variances in temperature is likely to induce illness.
If so, all the rabbits in the first cage should have fallen sick.

a) The exposure to cold temperature acted as a catalyst for the toxins which made more rabbits in the first cage sick.
This seems to be the best answer.
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15 Sep 2010, 20:45
suyashjhawar wrote:
Two different cages of rabbits were given injections of mild toxins. In addition, the first cage was also exposed to cold temperature; three- fourths of the rabbits in this cage became sick. Only one-fifth of the rabbits in the normal temperature cage became sick. The lab technicians concluded that cold temperature increases the likelihood of illness in rabbits.

The technicians’ conclusion logically depends on which of the following assumptions?

a) The exposure to cold temperature acted as a catalyst for the toxins which made more rabbits in the first cage sick.
b) The toxins given to the rabbits in the two cages were of varying strength.
c) Injecting the rabbits with toxins made them sick.
d) Even without the exposure to cold temperature, the rabbits in the first cage would have probably gotten sick.
e) Even exposing rabbits to slight variances in temperature is likely to induce illness.

a. no. since they are assuming the rabbits get sick with toxin at normal temp so cold temp doesnt "trigger" it
b. no since they specifically said temp
c. true. if toxin has no effect then the sickness is not toxin related but temperature related or else.
d. no since it is based on toxin
e. no reason

C?
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15 Sep 2010, 20:51
I think C

Posted from my mobile device
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15 Sep 2010, 22:42
I was down to A and C. C seems too broad to me.

So will go with A.
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15 Sep 2010, 23:17
down to A and D

Final vote for A. OA please.
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15 Sep 2010, 23:48
I would go with A.The cold weather stimulated the illness among the rabbits.
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16 Sep 2010, 00:28
between A and C.

conclusion: cold temperature increases the likelihood of illness in rabbits. (note:toxins are not mentioned here)

c) Injecting the rabbits with toxins made them sick.
seems unrelated to the conclusion

a) The exposure to cold temperature acted as a catalyst for the toxins which made more rabbits in the first cage sick.
links cold and toxins. hence looks a better option.

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16 Sep 2010, 00:40
I cannot decide between A & C.

a) The exposure to cold temperature acted as a catalyst for the toxins which made more rabbits in the first cage sick.

This option is attractive but it is just re-phrasing of the conclusion.

"The lab technicians concluded that cold temperature increases the likelihood of illness in rabbits".

Increase = Catalyse.

c) Injecting the rabbits with toxins made them sick.
Seems plausible assumption as argument does not mention the cause of sickness.

IMO C
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16 Sep 2010, 01:22
Pls post OA and source.
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16 Sep 2010, 10:08
OA is A indeed.It can be assumed that the combination of cold temperature and the toxin makes more rabbits sick.All other choices can be true on a stand-alone basis.However,they do not support the technicians conclusion.
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Re: Two different cages of rabbits were given injections of mild [#permalink]

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02 Sep 2016, 22:49
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Re: Two different cages of rabbits were given injections of mild [#permalink]

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16 Sep 2016, 11:33
A is correct!

a) Correct - more rabbits became sick in the first cage than the second (assuming the cold weather was the only variation)
b) outside the scope
c) No, because some of the rabbits who were injected did not get sick from the toxins (as indicated by those who were not subjected to cold temperature)
d) No, not all of the rabbits who became sick in the first cage would have become sick had they not been exposed to cold temp
e) No because one became sick in the cage that was not subjected to cold temperatures
Re: Two different cages of rabbits were given injections of mild   [#permalink] 16 Sep 2016, 11:33
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