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For the first time, an earth-like planet has beendiscovered. This plan

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For the first time, an earth-like planet has beendiscovered. This plan  [#permalink]

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New post 26 Jul 2018, 21:38
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For the first time, an earth-like planet has been discovered. This planet is orbiting another star. Since we can now say with confidence that at least some of the 100 billion other stars like our sun may have planets like earth, the greatest chance for extraterrestrial life to exist is outside our solar system.

The argument above assumes which of the following?


A. Extraterrestrial organisms are likely to appear in forms similar to terrestrial ones.

B. Life cannot exist on the other planets of our solar system.

C. Life will always occur wherever earth-like planets exist.

D. Life is most likely to arise under earth-like conditions.

E. Life from other kinds of planets is too difficult to detect.

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Re: For the first time, an earth-like planet has beendiscovered. This plan  [#permalink]

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New post 26 Jul 2018, 21:46
If you notice, the author made a huge sweeping conclusion to include a new term - solar system. So, to fill the gap between life existence and outside our solar system, one has to assume that life existence is no more possible for planets in our solar system.
--B--
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For the first time, an earth-like planet has beendiscovered. This plan  [#permalink]

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New post 26 Jul 2018, 21:57
Bunuel wrote:
For the first time, an earth-like planet has been discovered. This planet is orbiting another star. Since we can now say with confidence that at least some of the 100 billion other stars like our sun may have planets like earth, the greatest chance for extraterrestrial life to exist is outside our solar system.

The argument above assumes which of the following?


A. Extraterrestrial organisms are likely to appear in forms similar to terrestrial ones.

B. Life cannot exist on the other planets of our solar system.

C. Life will always occur wherever earth-like planets exist.

D. Life is most likely to arise under earth-like conditions.

E. Life from other kinds of planets is too difficult to detect.



the argument is based on the assumption that since an earth-like planet orbits a star, it creates earthlike conditions on the star. And this gives us better chance to see UFO :) for example we can sometimes encounter aliens on planet Earth :lol: IMO D
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Re: For the first time, an earth-like planet has beendiscovered. This plan  [#permalink]

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New post 27 Jul 2018, 08:19
Bunuel wrote:
For the first time, an earth-like planet has been discovered. This planet is orbiting another star. Since we can now say with confidence that at least some of the 100 billion other stars like our sun may have planets like earth, the greatest chance for extraterrestrial life to exist is outside our solar system.


Stimulus :
There is greatest chance for life to exist outside our solar system, since there are earth-like planets in other solar systems.
However, the logical gap is the connection between the earth-like conditions and likelihood of the existence of life.

A. Extraterrestrial organisms are likely to appear in forms similar to terrestrial ones. --> Out of scope

B. Life cannot exist on the other planets of our solar system. --> Too extreme

C. Life will always occur wherever earth-like planets exist. --> Too extreme

D. Life is most likely to arise under earth-like conditions. --> Correct, negate the statement and see how the argument falls apart

E. Life from other kinds of planets is too difficult to detect. --> Out of scope


Hence, D.
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Re: For the first time, an earth-like planet has beendiscovered. This plan  [#permalink]

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New post 28 Jul 2018, 09:31
Bunuel wrote:
For the first time, an earth-like planet has been discovered. This planet is orbiting another star. Since we can now say with confidence that at least some of the 100 billion other stars like our sun may have planets like earth, the greatest chance for extraterrestrial life to exist is outside our solar system.

The argument above assumes which of the following?


A. Extraterrestrial organisms are likely to appear in forms similar to terrestrial ones.

B. Life cannot exist on the other planets of our solar system.

C. Life will always occur wherever earth-like planets exist.

D. Life is most likely to arise under earth-like conditions.

E. Life from other kinds of planets is too difficult to detect.


IMO B
A: The comparison between extraterrestrial organisms and terrestrial organisms is out of scope
B: If we negate this answer choice, we can weaken the conclusion. Hence, the best option Correct answer
C: always: extreme and this negating this option doesn't change our conclusion
D: Out of scope
E: Out of scope
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Re: For the first time, an earth-like planet has beendiscovered. This plan  [#permalink]

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New post 30 Jul 2018, 03:39
Bunuel wrote:
For the first time, an earth-like planet has been discovered. This planet is orbiting another star. Since we can now say with confidence that at least some of the 100 billion other stars like our sun may have planets like earth, the greatest chance for extraterrestrial life to exist is outside our solar system.

The argument above assumes which of the following?


A. Extraterrestrial organisms are likely to appear in forms similar to terrestrial ones.

B. Life cannot exist on the other planets of our solar system.

C. Life will always occur wherever earth-like planets exist.

D. Life is most likely to arise under earth-like conditions.

E. Life from other kinds of planets is too difficult to detect.


KAPLAN OFFICIAL SOLUTION:



Correct Choice: (D)

The conclusion is that “the greatest chance for life to exist is outside our solar system” because we know that there are earth-like planets in other solar systems. To link evidence and conclusion, we must assume that there is a connection between the presence of earth-like conditions and an increased chance for the existence of life. So choice (D) is correct.

Choice (A) is out of scope, since we’re concerned only with whether life exists, not what form it takes.

Choices (B) and (C) are too extreme (note the strong wording: “cannot exist” and “will always”).

Choice (E) is out of scope, since we’re not concerned with detecting life, but with whether it exists.
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Collection of Questions:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


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For the first time, an earth-like planet has beendiscovered. This plan  [#permalink]

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New post 31 Jul 2018, 04:27
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TaN1213 wrote:
If you notice, the author made a huge sweeping conclusion to include a new term - solar system. So, to fill the gap between life existence and outside our solar system, one has to assume that life existence is no more possible for planets in our solar system.
--B--



hi there TaN1213 and Priyadarshana

Let me try to explain why your answer choices turned out to be incorrect. so lets read whole statement once again and than analyze each sentence.

"For the first time, an earth-like planet has been discovered. This planet is orbiting another star. Since we can now say with confidence that at least some of the 100 billion other stars like our sun may have planets like earth, the greatest chance for extraterrestrial life to exist is outside our solar system".

Now lets break it down into sepereate sentences:

#1. For the first time, an earth-like planethas been discovered".

Notice here a key word "earth-like planet" Earth-like planet means it has certain natural conditions similar to Earth.

#2.This planet is orbiting another star".

Notice the key word "this planet- same as "earth-like planet" so this Earth like planet orbits some other star.
if you prethink without reading the third sentence, you will see some connection and you can make an assumption here....like this "looks like there is some effect :) hmm intereting ! :lol: Now why dont you reorder the above two sentences. i.e.

---> 1.The Earth like planet is orbiting another star. 2. For the first time, an earth-like planet has been discovered. Assumption ?


#3. "Since we can now say with confidence that at least some of the 100 billion other stars like our sun may have planets like earth, the greatest chance for extraterrestrial life to exist is outside our solar system"


The third sentence concludes that its actually due to the effect of earth like planet orbiting other star,there will be at least some of the 100 billion other stars like our sun may have planets like earth greatest chance for extraterrestrial life to exist is outside our solar system".


The argument above assumes which of the following?

Now the question asks about making an assumption. no need to focus on conclusion, focus on whole argument. So what do we talk mainly about ? About Earth like planets orbiting other stars, creating similar earth like conditions on other planets/stars. if there are similar earth like conditions then there is greater chance to see extraterrestrial life

now lets compare B vs D


B. Life cannot exist on the other planets of our solar system. ( B is saying totally opposite thing. because we know that Earth like planets orbiting other stars, create similar earth like conditions on other planets, thus there is greatest chance for extraterrestrial life to exist is outside our solar system. moreover whole argument revolves around earth like planets, and not about solar system).


D. Life is most likely to arise under earth-like conditions. Exactly ! (because we know that Earth like planets orbiting other stars, create similar earth like conditions on other planets, thus there is greatest chance for extraterrestrial life )

have a great day ! :-)
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For the first time, an earth-like planet has beendiscovered. This plan &nbs [#permalink] 31 Jul 2018, 04:27
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