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GMAT:Punch Of the Week (08-June-09)

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What is "Punch Of The Week"?
  • Every week Learnhub's team will post one question each on Verbal Ability and Quantitative Ability of the GMAT Test Preparation

  • Members can post their answers along with explanations for the next one week.

  • After one week, Learnhub's team will post the official answer along with the explanation.Besides answering the previous week's questions, Learnhub's Team will come up with the next set of questions for that week as well.
What are the rules of "Punch Of The Week"?
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"Punch Of The Week" Team Members
Learnhub's Punch
This Week's Punches
Critical Reasoning

When workers do not find their assignments chal-lenging, they become bored and so achieve less than their abilities would allow. On the other hand, whenworkers find their assignments too difficult, they give up and so again achieve less than what they are capable of achieving. It is, therefore, clear that no worker's full potential will ever be realized. Which one of the following is an error of reasoning contained in the argument?

(A) mistakenly equating what is actual and what is merely possible
(B) assuming without warrant that a situation allows only two possibilities
(C) relying on subjective rather than objective evidence
(D) confusing the coincidence of two events with a causal relation between the two
(E) depending on the ambiguous use of a key term


Problem Solving

How many ordered triples of positive integers (x, y, z) satisfy (x^y)^z = 64?

(A) 5
(B) 6
(C) 7
(D) 8
(E) 9

Click here for last week's Punch and explanatory answers for the same

Posted on 15-June-09

So,folks here are the correct answers

Critical Reasoning
The correct answer is B. This argument commits the fallacy of false dichotomy. It assumes that workers have only two reactions to their work-either it's not challenging or it's too challenging. Clearly, there is a wide range of reactions between those two extremes. The answer is (B).
Problem Solving
The correct answer is E.

Because 64 = 2^6 we see that 64 is a sixth power, a cube, a square, as well as a first power. Therefore, z = 6, 3, 2, or 1. For z = 6 we have only (x, y) = (2, 1); for z = 3 we have (x, y) = (4, 1), and (2, 2); for z = 2 we have (x, y) = (8, 1) and (2, 3); and for z = 1 we have (x, y) = (64, 1), (8, 2), and (2, 6). There are nine solutions in all.

Click here for the next week's Punch


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  1. daagh saidMon, 08 Jun 2009 17:23:45 -0000 ( Link )

    GMAT CR Ans:

    B) assuming without warrant that a situation allows only two possibilities. Apart from the worker e3latyerd

    Exp: Apart form the worker related probabilities of poor performance , there may be assignment related reasons for underperformance, such as an inherent flaw in the program or infrastructure related problems such as frequent power failure in a factory. or frequent internet breakdowns etc How can the employee related proficiency or the lack of it alone be blamed?

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  2. aarti_prayer1 saidTue, 09 Jun 2009 01:28:34 -0000 ( Link )

    CR: B, PS: B

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  3. i_m_wat_i_m saidWed, 10 Jun 2009 09:22:14 -0000 ( Link )

    For Critical reasoning i am confused between A and B but i think it should be A cause he is equating more enthu and less enthu with and equal situation. Correct me if i am wrong!! Bur for PS i think its 9 option E

    (21)6 and (26)1 (22)3 and (23)3 (41)3 and (43)1 (82)1 and (81)2 (641)1

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  4. smit_sanu saidWed, 10 Jun 2009 12:32:30 -0000 ( Link )

    for CR i will go for option D, and for PS option E.

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  5. debjanir saidWed, 10 Jun 2009 12:41:42 -0000 ( Link )

    CR – B ps – c

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  6. vineetgoyal123 saidWed, 10 Jun 2009 17:06:34 -0000 ( Link )

    CR- B PS- C, 9 TRIPLETS (64,1,1), (8,1,2), (8,2,1), (4,3,1), (4,1,3), (2,1,6), (2,6,1), (2,2,3), (2,3,2)

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  7. amitjoshi saidThu, 11 Jun 2009 12:01:56 -0000 ( Link )

    For CR -B For PS -B(64,1,1)(4,3,1)(8,2,1)(2,2,3)(2,3,2)(4,2,2)

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  8. jaskyac saidThu, 11 Jun 2009 17:06:12 -0000 ( Link )

    CR: B assuming without warrant that a situation allows only two possibilitie PS: E S={(2,1,6)(2,2,3),(2,3,2),(2,6,1),(4,1,3),(4,3,1),(8,1,2),(8,2,1),(64,1,1)}

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  9. meetaali saidFri, 12 Jun 2009 05:00:26 -0000 ( Link )

    CR-B & PS-A

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  10. arvind70 saidFri, 12 Jun 2009 09:32:48 -0000 ( Link )

    CR-B, PS-E

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  11. niti_mohan saidFri, 12 Jun 2009 10:35:58 -0000 ( Link )

    for CS i will go with C as it is generalizing all the workers and saying that no worker will reach its potential. So my answer for CS is C. and for PS ans is E

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  12. ravi8319 saidFri, 12 Jun 2009 11:01:47 -0000 ( Link )

    For CR i will go with D and PS i will go with E

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  13. CRYOGEN saidFri, 12 Jun 2009 18:17:56 -0000 ( Link )

    for CR its B. A & C go off tangentially.there is no cause effect relation here and the stimulus does not assume so therefore C is incorrect. neither the use of ambiguous term so D is out. and PS its E.

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  14. rc_sunil saidFri, 12 Jun 2009 20:25:31 -0000 ( Link )

    CR is C I think because given these two situations the argument is subjective. PS is E

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  15. rc_sunil saidFri, 12 Jun 2009 20:25:55 -0000 ( Link )

    CR is C and PS is E

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