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# Problem I am facing in GMAT

Author Message
Senior Manager
Joined: 12 Mar 2010
Posts: 357

Kudos [?]: 270 [0], given: 87

Concentration: Marketing, Entrepreneurship
GMAT 1: 680 Q49 V34
Problem I am facing in GMAT [#permalink]

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24 Aug 2011, 11:29
00:00

Difficulty:

(N/A)

Question Stats:

40% (01:18) correct 60% (03:38) wrong based on 6 sessions

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While solving the GMAT problems, I am facing a problem of assuming information.. For example, in the below question, it is mentioned that the increase is 'constant amount'. But when I read this question, I assumed it is constant rate of increase, and complicated a simple problem.

This happens to me in considerable number of problems in verbal and quant. Could somebody help me on how should I work on this, please?

Example Question:
when a certain tree was first planted, it was 4 feet tall & the height of the tree increased by a constant amount each year for the next 6 years. at the end of 6 year the tree was 1/5 taller then it was at the end of 4 year. by how many feet did the height of the tree increase each year
a 3/10
b 2/5
c 1/2
d 2/3
e 6/5

Kudos [?]: 270 [0], given: 87

Manager
Joined: 18 Oct 2010
Posts: 88

Kudos [?]: 8 [0], given: 0

Re: Problem I am facing in GMAT [#permalink]

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24 Aug 2011, 19:03
supposed the first year is Xo =4
year 1 = X1= 4+a
year 2 X=4+2a.... so year 4 : X4=4+4a
year 6= 4+6a
year 6= (1/5 +1)year 4
so it should be : 4+6a=1/5(4+4a)+4+4a and you solved it and the answer is 2/3

Kudos [?]: 8 [0], given: 0

Math Forum Moderator
Joined: 20 Dec 2010
Posts: 1964

Kudos [?]: 2048 [0], given: 376

Re: Problem I am facing in GMAT [#permalink]

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25 Aug 2011, 06:20
bsaikrishna wrote:
While solving the GMAT problems, I am facing a problem of assuming information.. For example, in the below question, it is mentioned that the increase is 'constant amount'. But when I read this question, I assumed it is constant rate of increase, and complicated a simple problem.

This happens to me in considerable number of problems in verbal and quant. Could somebody help me on how should I work on this, please?

Example Question:
when a certain tree was first planted, it was 4 feet tall & the height of the tree increased by a constant amount each year for the next 6 years. at the end of 6 year the tree was 1/5 taller then it was at the end of 4 year. by how many feet did the height of the tree increase each year
a 3/10
b 2/5
c 1/2
d 2/3
e 6/5

This question is already discussed here:
percent-increase-27208.html
_________________

Kudos [?]: 2048 [0], given: 376

Re: Problem I am facing in GMAT   [#permalink] 25 Aug 2011, 06:20
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