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Re: GMAT Diagnostic Test Question 7 [#permalink]
12 Jun 2009, 06:37

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Explanation: Official Answer: E

You have to notice that the difference between a numerator and denominator of any fraction equals 3. Thus, the greater the numerator/denominator, the greater the fraction. In this case, the greatest numerator is in the third fraction. The answer is E.

You might think of these two fractions as an extreme example:

\frac{997}{1000} and \frac{1}{4}

The difference between numerator and denominator is the same for both fractions, as you can see. There's no doubt, though, that the first fraction is very close to 1, unlike the second one. So, having in mind the same difference between numerators and denominators of the fractions in the answer choices, the greater numerator (denominator) of the fraction, the greater the fraction.

Re: GMAT Diagnostic Test Question 7 [#permalink]
09 Aug 2009, 20:48

I noticed the difference bt was'nt able to conclude anything..So basically this is like comparing 1/4 , 5/8 and 7/10...since the last one has the highest numerator it will be the largest fraction..hmm..intresting..can somebody please elaborate on this ??

Re: GMAT Diagnostic Test Question 7 [#permalink]
10 Aug 2009, 02:59

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You might think of these two fractions as an extreme example:

\frac{997}{1000} and \frac{1}{4}

The difference between numerator and denominator is the same for both fractions, as you can see. There's no doubt, though, that the first fraction is very close to 1, unlike the second one. So, having in mind the same difference between numerators and denominators of the fractions in the answer choices, the greater numerator (denominator) of the fraction, the greater the fraction.

Hope this helps .

tejal777 wrote:

I noticed the difference bt was'nt able to conclude anything..So basically this is like comparing 1/4 , 5/8 and 7/10...since the last one has the highest numerator it will be the largest fraction..hmm..intresting..can somebody please elaborate on this ??

Re: GMAT Diagnostic Test Question 7 [#permalink]
10 Aug 2009, 07:17

Quote:

You might think of these two fractions as an extreme example:

and

The difference between numerator and denominator is the same for both fractions, as you can see. There's no doubt, though, that the first fraction is very close to 1, unlike the second one. So, having in mind the same difference between numerators and denominators of the fractions in the answer choices, the greater numerator (denominator) of the fraction, the greater the fraction.

Re: GMAT Diagnostic Test Question 7 [#permalink]
10 Aug 2009, 08:24

Welcome to the forum, shaknon!

We hope you like our community and will become an active participant . Good luck with your GMAT journey!

shaknon wrote:

Quote:

You might think of these two fractions as an extreme example:

and

The difference between numerator and denominator is the same for both fractions, as you can see. There's no doubt, though, that the first fraction is very close to 1, unlike the second one. So, having in mind the same difference between numerators and denominators of the fractions in the answer choices, the greater numerator (denominator) of the fraction, the greater the fraction.

Re: GMAT Diagnostic Test Question 7 [#permalink]
14 Jan 2010, 19:41

My answer was D. I compared fractions. 2/5 was smaller than 6/9, 6/9 was greater than 3/6 & = to 6/9 but > than 1/4. I guess I should have known that the correct answer wouldn't be either of the numbers w/ 6/9. Still don't understand how it's E though..

if you look at it this way, it all makes sense seems like a piece of cake, however when you're doing it in a test, I for one, stump and get nervous and just counting seconds on my mind when handing too many similar looking numbers like this one. anyone has a tip for me in how to go about taking control of this stress? also does anyone know how to go training your mind to thinking this way in the exam?

if you look at it this way, it all makes sense seems like a piece of cake, however when you're doing it in a test, I for one, stump and get nervous and just counting seconds on my mind when handing too many similar looking numbers like this one. anyone has a tip for me in how to go about taking control of this stress? also does anyone know how to go training your mind to thinking this way in the exam?

thanks

The only way I know is to practice, practice, and practice; that way, you become familiar with a lot of concepts tested on the exam, and your confidence level boosts while, at the same time, your time of solving questions shrinks...

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