Summer is Coming! Join the Game of Timers Competition to Win Epic Prizes. Registration is Open. Game starts Mon July 1st.

 It is currently 16 Jul 2019, 11:36

### 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

# Ratio and Proportion

Author Message
Intern
Affiliations: IIBA
Joined: 04 Sep 2010
Posts: 48
Location: India
Schools: HBS, Stanford, Stern, Insead, ISB, Wharton, Columbia
WE 1: Information Technology (Banking and Financial Services)

### Show Tags

15 Jun 2011, 22:29
1
00:00

Difficulty:

25% (medium)

Question Stats:

85% (01:12) correct 15% (03:13) wrong based on 34 sessions

### HideShow timer Statistics

The ages of Patrick and Michael are in the ratio of 3 : 5 and that of Michael and Monica are in the ratio of 3 : 5. If the sum of their ages is 147, what is the difference between the ages of Patrick and Monica?

A. 27

B. 48

C. 45

D. 72

E. 18

--== Message from the GMAT Club Team ==--

THERE IS LIKELY A BETTER DISCUSSION OF THIS EXACT QUESTION.
This discussion does not meet community quality standards. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

_________________
~soaringAlone
~Live fast, die young and leave a marketable corpse behind !!
Manager
Joined: 09 Feb 2011
Posts: 217
Concentration: General Management, Social Entrepreneurship
Schools: HBS '14 (A)
GMAT 1: 770 Q50 V47

### Show Tags

15 Jun 2011, 22:38
Patrick: Michael: Monika
....3....:.....5....
............... 3....:.....5

To be able to compare patrick with Monika, we need to convert them into a single ratio. we know how michael's age compares to both patrick and monika, and so we convert this into a single number:
Since terms of a ratio can be multiplied/divided by same number,
Patrick: Michael: Monika
....3*3:....5*3
..............3*5:.........5*5

i.e.
Patrick: Michael: Monika
.....9...:.....15
................15..:.....25
which makes the final ratio: 9:15:25
sum of ages is 147
so, 9x+15x+25x = 147
49 x = 147
x= 3
Difference between Monica's age and patrick's age = 25 x - 9 x = 16 x
i.e. 16 *3 = 48

--== Message from the GMAT Club Team ==--

THERE IS LIKELY A BETTER DISCUSSION OF THIS EXACT QUESTION.
This discussion does not meet community quality standards. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.
Non-Human User
Joined: 09 Sep 2013
Posts: 11658

### Show Tags

09 Sep 2018, 07:51
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________
Re: Ratio and Proportion   [#permalink] 09 Sep 2018, 07:51
Display posts from previous: Sort by