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Came across few questions in GMATCLUB CAT Quant

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ROckHIsT
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Came across few questions in GMATCLUB CAT Quant [#permalink] New post   30 Dec 2013, 02:43
Hello


While I was taking GmatClub test, I came across few question where there were 5 options with long digits (6) in fractions and I was suppose to find the least number in decimal of them.

How do I tackle such question by not compromising on time as well as the question? :|


Regards
Rohit
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bhatiamanu05
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Re: Came across few questions in GMATCLUB CAT Quant [#permalink] New post   30 Dec 2013, 03:35
rgyanani wrote:
Hello


While I was taking GmatClub test, I came across few question where there were 5 options with long digits (6) in fractions and I was suppose to find the least number in decimal of them.

How do I tackle such question by not compromising on time as well as the question? :|


Regards
Rohit



Hi Rohit,

Can you please post the questions?
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Re: Came across few questions in GMATCLUB CAT Quant [#permalink] New post   30 Dec 2013, 09:12
I don't exactly remember the numbers but the options were like

1) 45679/45677
2) 45551/45549
3) 45663/45667
etc.

how to solve such divisions without spending too much time on the options?


bhatiamanu05 wrote:
rgyanani wrote:
Hello


While I was taking GmatClub test, I came across few question where there were 5 options with long digits (6) in fractions and I was suppose to find the least number in decimal of them.

How do I tackle such question by not compromising on time as well as the question? :|


Regards
Rohit



Hi Rohit,

Can you please post the questions?
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KarishmaB
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Re: Came across few questions in GMATCLUB CAT Quant [#permalink] New post   02 Jan 2014, 03:11
Expert Reply
rgyanani wrote:
I don't exactly remember the numbers but the options were like

1) 45679/45677
2) 45551/45549
3) 45663/45667
etc.

how to solve such divisions without spending too much time on the options?


bhatiamanu05 wrote:
rgyanani wrote:
Hello


While I was taking GmatClub test, I came across few question where there were 5 options with long digits (6) in fractions and I was suppose to find the least number in decimal of them.

How do I tackle such question by not compromising on time as well as the question? :|


Regards
Rohit



Hi Rohit,

Can you please post the questions?


The logic to be used will depend on the exact question. You will need to compare the options with each other. There will be many ways to do that e.g. it is possible that numerator of one option is greater than that of another while its denominator is smaller which will make the first fraction larger than the other.

Comparing these three is simple:

1) 45679/45677 (greater than 1)
2) 45551/45549 (greater than 1)
3) 45663/45667 (less than 1)

Out of
1) 45679/45677 (greater than 1)
2) 45551/45549 (greater than 1)

In both these, the numerator is greater than the denominator by 2. The fraction with the smaller denominator will be larger because an extra 2 in the numerator will have more impact.

1) 45679/45677 = 1 + 2/45677
2) 45551/45549 = 1 + 2/45549
The highlighted fraction is greater than the other one because it has the smaller denominator.

Hence option (2) is greatest of these three options.
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ROckHIsT
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Joined: 30 Sep 2013
Status:Yes, I can and I will. 700+FTW
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Re: Came across few questions in GMATCLUB CAT Quant [#permalink] New post   02 Jan 2014, 04:49
Thanks Karishma

:)

I don't exactly remember the numbers but the options were like

1) 45679/45677
2) 45551/45549
3) 45663/45667
etc.

how to solve such divisions without spending too much time on the options?


bhatiamanu05 wrote:
rgyanani wrote:
Hello


While I was taking GmatClub test, I came across few question where there were 5 options with long digits (6) in fractions and I was suppose to find the least number in decimal of them.

How do I tackle such question by not compromising on time as well as the question? :|


Regards
Rohit



Hi Rohit,

Can you please post the questions?
[/quote]

The logic to be used will depend on the exact question. You will need to compare the options with each other. There will be many ways to do that e.g. it is possible that numerator of one option is greater than that of another while its denominator is smaller which will make the first fraction larger than the other.

Comparing these three is simple:

1) 45679/45677 (greater than 1)
2) 45551/45549 (greater than 1)
3) 45663/45667 (less than 1)

Out of
1) 45679/45677 (greater than 1)
2) 45551/45549 (greater than 1)

In both these, the numerator is greater than the denominator by 2. The fraction with the smaller denominator will be larger because an extra 2 in the numerator will have more impact.

1) 45679/45677 = 1 + 2/45677
2) 45551/45549 = 1 + 2/45549
The highlighted fraction is greater than the other one because it has the smaller denominator.

Hence option (2) is greatest of these three options.[/quote]
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gmatclubot
Re: Came across few questions in GMATCLUB CAT Quant [#permalink]
02 Jan 2014, 04:49

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