GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 17 Oct 2018, 15:40

Close

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
Your Progress

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

The sum 47/50 + 33/49 is between

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 49968
The sum 47/50 + 33/49 is between  [#permalink]

Show Tags

New post 24 Oct 2016, 23:25
1
8
00:00
A
B
C
D
E

Difficulty:

  55% (hard)

Question Stats:

56% (01:22) correct 44% (01:24) wrong based on 363 sessions

HideShow timer Statistics

CEO
CEO
User avatar
P
Joined: 08 Jul 2010
Posts: 2537
Location: India
GMAT: INSIGHT
WE: Education (Education)
Reviews Badge
Re: The sum 47/50 + 33/49 is between  [#permalink]

Show Tags

New post 25 Oct 2016, 00:02
1
1
Bunuel wrote:
The sum 47/50 + 33/49 is between

A. 1.0 and 1.2
B. 1.2 and 1.4
C. 1.4 and 1.6
D. 1.6 and 1.8
E. 1.8 and 2.0


47/50 + 33/49 = 47/50 + 33/50 (approx.) = 80/50 (approx) = 1.6

Since we have increased the denominator by a little amount (from 49 to 50) so the result would be a little less than actual result

Hence correct answer should be a very little greater than 1.6

Answer: option D
_________________

Prosper!!!
GMATinsight
Bhoopendra Singh and Dr.Sushma Jha
e-mail: info@GMATinsight.com I Call us : +91-9999687183 / 9891333772
Online One-on-One Skype based classes and Classroom Coaching in South and West Delhi
http://www.GMATinsight.com/testimonials.html

ACCESS FREE GMAT TESTS HERE:22 ONLINE FREE (FULL LENGTH) GMAT CAT (PRACTICE TESTS) LINK COLLECTION

Manager
Manager
avatar
Joined: 29 Aug 2008
Posts: 110
Re: The sum 47/50 + 33/49 is between  [#permalink]

Show Tags

New post 25 Oct 2016, 02:34
\(\frac{47}{50}\) + \(\frac{33}{49}\)

= \(\frac{94}{100}\) + \(\frac{66}{98}\)

= .94 + ~.66 (\(\frac{66}{100}\) = 1.6

Since we increased the denominator for approximation the actual value of the fraction reduced, so the overall value would be greater than 1.6

So, option D.
Veritas Prep GMAT Instructor
User avatar
P
Joined: 16 Oct 2010
Posts: 8386
Location: Pune, India
Re: The sum 47/50 + 33/49 is between  [#permalink]

Show Tags

New post 25 Oct 2016, 04:56
1
Bunuel wrote:
The sum 47/50 + 33/49 is between

A. 1.0 and 1.2
B. 1.2 and 1.4
C. 1.4 and 1.6
D. 1.6 and 1.8
E. 1.8 and 2.0


47/50 + 33/49

= 1 - 3/50 + 30/49 + 3/49

30/49 is a little more than 0.6
3/49 - 3/50 will be a small positive number

So we get
1 + 0.6 + a bit of positive

Answer (D)
_________________

Karishma
Veritas Prep GMAT Instructor

Learn more about how Veritas Prep can help you achieve a great GMAT score by checking out their GMAT Prep Options >

GMAT self-study has never been more personalized or more fun. Try ORION Free!

Board of Directors
User avatar
P
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 4094
Location: India
GPA: 3.5
WE: Business Development (Commercial Banking)
GMAT ToolKit User Premium Member
The sum 47/50 + 33/49 is between  [#permalink]

Show Tags

New post 25 Oct 2016, 07:34
1
Bunuel wrote:
The sum 47/50 + 33/49 is between

A. 1.0 and 1.2
B. 1.2 and 1.4
C. 1.4 and 1.6
D. 1.6 and 1.8
E. 1.8 and 2.0


\(\frac{47}{50} = \frac{94}{100}\)

\(\frac{33}{49}\) ~ \(\frac{66}{100}\)

\(\frac{94}{100}\) \(+\) \(\frac{66}{100}\) = \(\frac{160}{100}\)

Hence answer will be (D)
_________________

Thanks and Regards

Abhishek....

PLEASE FOLLOW THE RULES FOR POSTING IN QA AND VA FORUM AND USE SEARCH FUNCTION BEFORE POSTING NEW QUESTIONS

How to use Search Function in GMAT Club | Rules for Posting in QA forum | Writing Mathematical Formulas |Rules for Posting in VA forum | Request Expert's Reply ( VA Forum Only )

Target Test Prep Representative
User avatar
G
Status: Head GMAT Instructor
Affiliations: Target Test Prep
Joined: 04 Mar 2011
Posts: 2830
Re: The sum 47/50 + 33/49 is between  [#permalink]

Show Tags

New post 25 Oct 2016, 16:54
1
1
Bunuel wrote:
The sum 47/50 + 33/49 is between

A. 1.0 and 1.2
B. 1.2 and 1.4
C. 1.4 and 1.6
D. 1.6 and 1.8
E. 1.8 and 2.0


Since our answers are in decimal form, it may be easiest to convert 47/50 and 33/49 to decimals as well. Let’s start with 47/50.

(47/50) x 2/2 = 94/100 = 0.94

To easiest convert 33/49 to a decimal, we can slightly estimate 33/49 to 33/50.

(33/50) x 2/2 =66/100 = 0.66

Thus, 0.94 + 0.66 = 1.6

Had 33/49 been 33/50, the sum of 47/50 and 33/49 would have been 1.6. However, since 33/49 is actually slightly greater than 33/50, the sum is actually slightly greater than 1.6. Therefore, the sum is between 1.6 and 1.8.

Answer: D
_________________

Jeffery Miller
Head of GMAT Instruction

GMAT Quant Self-Study Course
500+ lessons 3000+ practice problems 800+ HD solutions

CEO
CEO
User avatar
D
Joined: 12 Sep 2015
Posts: 3009
Location: Canada
Re: The sum 47/50 + 33/49 is between  [#permalink]

Show Tags

New post 30 Nov 2016, 10:55
Top Contributor
Bunuel wrote:
The sum 47/50 + 33/49 is between

A. 1.0 and 1.2
B. 1.2 and 1.4
C. 1.4 and 1.6
D. 1.6 and 1.8
E. 1.8 and 2.0


Let's rewrite each fraction as an equivalent fraction with 100 in each denominator.

47/50
Multiply numerator and denominator by 2 to get 94/100

33/49
49 x 2 = 98
So, to get 100 in the denominator, we must multiply 49 by a number a little bit bigger than 2
Multiply numerator and denominator by a number a little bit bigger than 2 to get (a number a little bigger than 66)/100
Let's rewrite "a number a little bigger than 66" as "66+"
So, we get: (66+)/100

Now add the equivalent fractions
94/100 + (66+)/100 = (160+)/100
= 1.6+ (a number a little bit bigger than 1.6

Answer:

RELATED VIDEO

_________________

Brent Hanneson – GMATPrepNow.com
Image
Sign up for our free Question of the Day emails

Non-Human User
User avatar
Joined: 09 Sep 2013
Posts: 8442
Premium Member
Re: The sum 47/50 + 33/49 is between  [#permalink]

Show Tags

New post 18 Mar 2018, 19:13
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.
_________________

GMAT Books | GMAT Club Tests | Best Prices on GMAT Courses | GMAT Mobile App | Math Resources | Verbal Resources

GMAT Club Bot
Re: The sum 47/50 + 33/49 is between &nbs [#permalink] 18 Mar 2018, 19:13
Display posts from previous: Sort by

The sum 47/50 + 33/49 is between

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


Copyright

GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.