Online CAT 2009: Punch Of the Week (20-April-09)

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Sureshbala

Online CAT 2009: Punch Of the Week (20-April-09)

Author: Sureshbala

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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"?

	Every user must refrain from posting sarcastic comments on the answers posted by others.
	Once the Learnhub's team posts the official answer along with the explanation, no comments must be made regarding those questions. In case of further clarification please send a personal message to the respective team member
	If you think that there is something wrong with the explanation of the Learnhub's Team, which seldom happens, please send a personal message to the respective team member informing him/her the same. Posting the same here will not be considered and will be deleted.
	Please bear in mind that only Learnhub's Team members have the privilege of posting questions here. Questions posted by other members will not be entertained and hence will be deleted immediately.

"Punch Of The Week" Team Members

This Week's Punches

In each question, the word at the top is used in four different ways, numbered 1 to 4. Choose the option in which the usage of the word is incorrect or inappropriate.

ACT

1] Accidents caused by tornadoes, perils of the sea, extraordinary floods, and severe ice storms are usually considered acts of God, but fires are not so considered unless they are caused by lightning.
2] But then I would rather be truthful than to put an act on all the time.
3] The governor should act on the new energy bill.
4] The veteran artist was asked to get his act together for a more realistic portrayal of a man in trouble.

Quantitative Ability

There are three numbers, which are in arithmetic progression, the common difference being 7.If the second number is diminished by 1 and the last number increased by 4, the numbers would be in geometric progression. Find the largest of the three numbers.

1) 13

2) 20

3) 17

4) 25

5) 18

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

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rkmittal said – Mon, 20 Apr 2009 09:10:14 -0000 ( Flag Edit Link )

(2) & (2)
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bluffmaster said – Mon, 20 Apr 2009 09:25:43 -0000 ( Flag Edit Link )

quant-2 ,verbal-4
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pramu said – Mon, 20 Apr 2009 11:19:03 -0000 ( Flag Edit Link )

quant 2 and verbal 3
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nikhilwillstay said – Tue, 21 Apr 2009 17:34:31 -0000 ( Flag Edit Link )

first one 2, second one 2
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reshav85 said – Tue, 21 Apr 2009 17:53:16 -0000 ( Flag Edit Link )

quant 2 & verbal 4
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ijuxamster said – Wed, 22 Apr 2009 08:15:42 -0000 ( Flag Edit Link )

quant(2), Verbal(2)
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vinay_jawa007 said – Wed, 22 Apr 2009 11:49:59 -0000 ( Flag Edit Link )

quant 2 and verbal 4
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sundaresh07 said – Wed, 22 Apr 2009 11:53:37 -0000 ( Flag Edit Link )

Verbal) 3
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sundaresh07 said – Wed, 22 Apr 2009 12:06:23 -0000 ( Flag Edit Link )

Sorry, the answer is 2 for verbal – because the sentence should read ” put ON an act all ….. ” .
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i_m_wat_i_m said – Thu, 23 Apr 2009 06:09:57 -0000 ( Flag Edit Link )

for verbal usage of act on in sentance 2 is wrong, act on is used when you have some action and for that we need to put our reaction, there we use act on, for statement 2 its not correct,

for quant: let the AP be a-d, a,a+d and given d=7 thus we know from the language of question when the no. are in gp then (b^{2=ac) so,
(a-7) (a+11) = (a-1)}2

giving a = 13 thus a+7= 20 hence answer is (2)
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somanath pradhan said – Fri, 24 Apr 2009 16:26:02 -0000 ( Flag Edit Link )

(2) for verbal & (2) for QA
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Svina said – Sat, 25 Apr 2009 11:16:42 -0000 ( Flag Edit Link )

VCA-4 Quant-2
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rajat1711 said – Sun, 26 Apr 2009 09:46:35 -0000 ( Flag Edit Link )

verbal(2), Quant(2)
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rahdoegar said – Sun, 26 Apr 2009 13:15:34 -0000 ( Flag Edit Link )

verbal-2 quant-2
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vimala_chakravarthy said – Mon, 27 Apr 2009 11:23:42 -0000 ( Flag Edit Link )

verbal – 4 quant – 2
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rohitjain20 said – Tue, 28 Apr 2009 10:00:54 -0000 ( Flag Edit Link )

quant-2,verbal-2
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westerncowboy007 said – Tue, 28 Apr 2009 15:00:27 -0000 ( Flag Edit Link )

Ans: 2 for both the questions
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pbharathkumar87 said – Fri, 01 May 2009 05:54:15 -0000 ( Flag Edit Link )

verbal 2 , quants 2
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shahid82 said – Mon, 04 May 2009 08:22:58 -0000 ( Flag Edit Link )

verbal2,quant2
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vishwamkona said – Wed, 06 May 2009 23:33:59 -0000 ( Flag Edit Link )

2 & 2
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satheesh_gannoju said – Sat, 09 May 2009 09:20:19 -0000 ( Flag Edit Link )

Verbal-4, Quant-2
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lloyd said – Sat, 09 May 2009 10:15:24 -0000 ( Flag Edit Link )

quat its 2 i think
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viditrishu said – Mon, 11 May 2009 06:57:50 -0000 ( Flag Edit Link )

2> &2>
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Sureshbala said – Tue, 12 May 2009 07:58:45 -0000 ( Flag Edit Link )

So,folks here are the correct answers

Verbal Ability
The correct answer is 4. Get one’s act together implies to get organized. However, in statement 4, it is used in the context of better acting, which is incorrect usage.

Problem Solving
The correct answer is A.

Let the 3 numbers in A.P. be (a-7), a, (a+7). Then, (a-7), (a-1), (a+11) are in G.P.

$\Rightarrow (a-1)^2 = (a-7)(a+11)$
$\Rightarrow a^2 - 2a + 1 = a^2 + 4a -77$
$\Rightarrow 6a = 78 \Rightarrow a = 13$
Hence the largest number i.e. a+7 = 20

Click here for the next week’s Punch

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