Check GMAT Club Decision Tracker for the Latest School Decision Releases https://gmatclub.com/AppTrack

 It is currently 23 May 2017, 22:53

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# Both numerator and denominator are increased by 30

Author Message
Intern
Joined: 15 Nov 2009
Posts: 29
Schools: Kelley
Followers: 0

Kudos [?]: 8 [0], given: 4

Both numerator and denominator are increased by 30 [#permalink]

### Show Tags

02 Dec 2009, 11:02
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

### HideShow timer Statistics

This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Qn 87, Page 280. Answer credited is E.

d1/r1

Both numerator and denominator are increased by 30

d2 = (d1 + 30)
r2 = (r1 + 30)

Now, I cant think of any scenario where increasing the numerator and denomintor by an equal value will not cause the new fraction to be either equal to or greater than the old fraction? It certainly cannot be less than the old fraction - what am I missing?
Senior Manager
Joined: 30 Aug 2009
Posts: 286
Location: India
Concentration: General Management
Followers: 3

Kudos [?]: 171 [0], given: 5

Re: GMAT OG - 12th Edition, DS Qn 87 [#permalink]

### Show Tags

02 Dec 2009, 11:16
junker wrote:
Qn 87, Page 280. Answer credited is E.

d1/r1

Both numerator and denominator are increased by 30

d2 = (d1 + 30)
r2 = (r1 + 30)

Now, I cant think of any scenario where increasing the numerator and denomintor by an equal value will not cause the new fraction to be either equal to or greater than the old fraction? It certainly cannot be less than the old fraction - what am I missing?

please post the question as all may not have OG12 with them (I dont have )
VP
Joined: 05 Mar 2008
Posts: 1469
Followers: 11

Kudos [?]: 277 [0], given: 31

Re: GMAT OG - 12th Edition, DS Qn 87 [#permalink]

### Show Tags

02 Dec 2009, 12:09
junker wrote:
Qn 87, Page 280. Answer credited is E.

d1/r1

Both numerator and denominator are increased by 30

d2 = (d1 + 30)
r2 = (r1 + 30)

Now, I cant think of any scenario where increasing the numerator and denomintor by an equal value will not cause the new fraction to be either equal to or greater than the old fraction? It certainly cannot be less than the old fraction - what am I missing?

-30/-60 = 1/2

-30+30/-60+30 = 0/-30 = 0 less than 1/2
Intern
Joined: 15 Nov 2009
Posts: 29
Schools: Kelley
Followers: 0

Kudos [?]: 8 [0], given: 4

Re: GMAT OG - 12th Edition, DS Qn 87 [#permalink]

### Show Tags

02 Dec 2009, 15:46
See that explanation does not make any sense. d1 is distance and r1 is rate of speed. These cannot possible be negative. I dont think the explanation is correct yet.

Anybody care to explain hwo the answer credited in the book can be correct?
VP
Joined: 05 Mar 2008
Posts: 1469
Followers: 11

Kudos [?]: 277 [0], given: 31

Re: GMAT OG - 12th Edition, DS Qn 87 [#permalink]

### Show Tags

02 Dec 2009, 16:56
junker wrote:
See that explanation does not make any sense. d1 is distance and r1 is rate of speed. These cannot possible be negative. I dont think the explanation is correct yet.

Anybody care to explain hwo the answer credited in the book can be correct?

The question just wants to know if if t1 > t2

they can be equal or one can be greater so the answer is E

Not to sure where's the confusion
GMAT Tutor
Joined: 24 Jun 2008
Posts: 1180
Followers: 438

Kudos [?]: 1603 [0], given: 4

Re: GMAT OG - 12th Edition, DS Qn 87 [#permalink]

### Show Tags

03 Dec 2009, 02:30
If we're dealing only with positive quantities:

If the numerator of a fraction is larger than the denominator, and you add 30 to both, the value of the fraction goes down:

10/3 is greater than 40/33, for example

If the numerator is smaller than the denominator, and you add 30 to both, the value of the fraction goes up:

1/2 is less than 31/32, for example
_________________

GMAT Tutor in Toronto

If you are looking for online GMAT math tutoring, or if you are interested in buying my advanced Quant books and problem sets, please contact me at ianstewartgmat at gmail.com

Re: GMAT OG - 12th Edition, DS Qn 87   [#permalink] 03 Dec 2009, 02:30
Display posts from previous: Sort by