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

It is currently 14 Nov 2018, 13:54

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
Events & Promotions in November
PrevNext
SuMoTuWeThFrSa
28293031123
45678910
11121314151617
18192021222324
2526272829301
Open Detailed Calendar
  • $450 Tuition Credit & Official CAT Packs FREE

     November 15, 2018

     November 15, 2018

     10:00 PM MST

     11:00 PM MST

    EMPOWERgmat is giving away the complete Official GMAT Exam Pack collection worth $100 with the 3 Month Pack ($299)
  • Free GMAT Strategy Webinar

     November 17, 2018

     November 17, 2018

     07:00 AM PST

     09:00 AM PST

    Nov. 17, 7 AM PST. Aiming to score 760+? Attend this FREE session to learn how to Define your GMAT Strategy, Create your Study Plan and Master the Core Skills to excel on the GMAT.

Eddy and Freddy start simultaneously from city A and they travel to

  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: 50585
Eddy and Freddy start simultaneously from city A and they travel to  [#permalink]

Show Tags

New post 09 Dec 2015, 07:12
1
3
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

78% (02:09) correct 22% (02:40) wrong based on 167 sessions

HideShow timer Statistics

Eddy and Freddy start simultaneously from city A and they travel to City B and City C respectively. Eddy takes 3 hours and Freddy takes 4 hours to complete the journey. If the distance between City A and City B is 600 kms and City A and City C is 300 kms. What is the ratio of their average speed of travel? (Eddy: Freddy)

A. 8/3
B. 3/8
C. 8/5
D. 5/8
E. 5/3

_________________

New to the Math Forum?
Please read this: Ultimate GMAT Quantitative Megathread | All You Need for Quant | PLEASE READ AND FOLLOW: 12 Rules for Posting!!!

Resources:
GMAT Math Book | Triangles | Polygons | Coordinate Geometry | Factorials | Circles | Number Theory | Remainders; 8. Overlapping Sets | PDF of Math Book; 10. Remainders | GMAT Prep Software Analysis | SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) | Tricky questions from previous years.

Collection of Questions:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


What are GMAT Club Tests?
Extra-hard Quant Tests with Brilliant Analytics

Verbal Forum Moderator
User avatar
V
Status: Greatness begins beyond your comfort zone
Joined: 08 Dec 2013
Posts: 2108
Location: India
Concentration: General Management, Strategy
Schools: Kelley '20, ISB '19
GPA: 3.2
WE: Information Technology (Consulting)
GMAT ToolKit User Reviews Badge CAT Tests
Re: Eddy and Freddy start simultaneously from city A and they travel to  [#permalink]

Show Tags

New post 09 Dec 2015, 07:26
Distance traveled by Eddy = 600 km
Time taken by Eddy = 3 hours
Average speed of Eddy = 600/3 = 200 km/hour

Distance traveled by Freddy = 300 km
Time taken by Freddy = 4 hours
Average speed of Freddy = 300/4 = 75 km/hour

Ratio of average speed of Eddy to Freddy = 200/75 = 8/3
Answer A
_________________

When everything seems to be going against you, remember that the airplane takes off against the wind, not with it. - Henry Ford
The Moment You Think About Giving Up, Think Of The Reason Why You Held On So Long
+1 Kudos if you find this post helpful

Current Student
avatar
Joined: 29 Apr 2015
Posts: 26
Location: Russian Federation
GMAT 1: 710 Q48 V38
GPA: 4
GMAT ToolKit User
Re: Eddy and Freddy start simultaneously from city A and they travel to  [#permalink]

Show Tags

New post 09 Dec 2015, 07:50
Bunuel wrote:
Eddy and Freddy start simultaneously from city A and they travel to City B and City C respectively. Eddy takes 3 hours and Freddy takes 4 hours to complete the journey. If the distance between City A and City B is 600 kms and City A and City C is 300 kms. What is the ratio of their average speed of travel? (Eddy: Freddy)

A. 8/3
B. 3/8
C. 8/5
D. 5/8
E. 5/3


1 approach. If Eddy had traveled 300 km (two times less than Freddy), he would have come to destination in 1.5 hours. Eddy needs 3/8 (or 1.5/4) time less to get to his point than Freddy to Freddy's point. Therefore, Eddy's rate of speed is 8/3 greater than that of Freddy because time and rate are reciprocals.

2 approach. The speed of Eddy is 600km/3hours = 200 km/h. The speed of Freddy is 400km/1.5hours = 75 km/h. Therefore, the ratio of Eddy: Freddy average speed of travel is 200/75 = 8/3
DS Forum Moderator
avatar
P
Joined: 21 Aug 2013
Posts: 1365
Location: India
Premium Member
Re: Eddy and Freddy start simultaneously from city A and they travel to  [#permalink]

Show Tags

New post 06 Jun 2017, 18:57
Speed of Eddy = 600/3 = 200 km/h
Speed of Freddy = 300/4 = 75 km/h

Required ratio = 200/75 = 8/3. Hence A answer
Intern
Intern
avatar
B
Joined: 30 Jul 2016
Posts: 6
Re: Eddy and Freddy start simultaneously from city A and they travel to  [#permalink]

Show Tags

New post 25 Jun 2017, 06:11
Bunuel wrote:
Eddy and Freddy start simultaneously from city A and they travel to City B and City C respectively. Eddy takes 3 hours and Freddy takes 4 hours to complete the journey. If the distance between City A and City B is 600 kms and City A and City C is 300 kms. What is the ratio of their average speed of travel? (Eddy: Freddy)

A. 8/3
B. 3/8
C. 8/5
D. 5/8
E. 5/3




I consider the total distance 900 km for both. and get to 4/3. i cant get why the proposed solutions considering Eddy's distance 600 and the other 300. can you explain? ?thanks in advance
Director
Director
User avatar
D
Joined: 04 Dec 2015
Posts: 715
Location: India
Concentration: Technology, Strategy
Schools: ISB '19, IIMA , IIMB, XLRI
WE: Information Technology (Consulting)
GMAT ToolKit User
Eddy and Freddy start simultaneously from city A and they travel to  [#permalink]

Show Tags

New post 25 Jun 2017, 06:32
Bunuel wrote:
Eddy and Freddy start simultaneously from city A and they travel to City B and City C respectively. Eddy takes 3 hours and Freddy takes 4 hours to complete the journey. If the distance between City A and City B is 600 kms and City A and City C is 300 kms. What is the ratio of their average speed of travel? (Eddy: Freddy)

A. 8/3
B. 3/8
C. 8/5
D. 5/8
E. 5/3


Eddy traveled to City B from City A.

Distance between City A and City B \(= 600\) kms

Time taken by Eddy to travel from city A to B \(= 3\) hours

Speed of Eddy \(= \frac{600}{3} = 200\) kms/hr

Freddy traveled to City C from City A.

Distance between City A and City C \(= 300\) kms

Time taken by Freddy to travel from city A to C \(= 4\) hours

Speed of Freddy \(= \frac{300}{4} = 75\) kms/hr

Required ratio = Average speed of Eddy / Average speed of Freddy \(= \frac{200}{75} = \frac{8}{3}\) . Answer (A) ...
Manager
Manager
avatar
B
Joined: 20 Jun 2017
Posts: 68
Location: India
GMAT 1: 720 Q50 V38
GPA: 4
Reviews Badge
Re: Eddy and Freddy start simultaneously from city A and they travel to  [#permalink]

Show Tags

New post 25 Jun 2017, 06:47
Answer : A

600/3 : 300/4
200 : 75 = 8:3
Senior SC Moderator
avatar
V
Joined: 22 May 2016
Posts: 2092
Premium Member CAT Tests
Eddy and Freddy start simultaneously from city A and they travel to  [#permalink]

Show Tags

New post 25 Jun 2017, 12:30
1
Yoohanna wrote:
Bunuel wrote:
Eddy and Freddy start simultaneously from city A and they travel to City B and City C respectively. Eddy takes 3 hours and Freddy takes 4 hours to complete the journey. If the distance between City A and City B is 600 kms and City A and City C is 300 kms. What is the ratio of their average speed of travel? (Eddy: Freddy)

A. 8/3
B. 3/8
C. 8/5
D. 5/8
E. 5/3


I consider the total distance 900 km for both. and get to 4/3. i cant get why the proposed solutions considering Eddy's distance 600 and the other 300. can you explain? ?thanks in advance

I agree with you. I think the question is phrased ambiguously.

"Respectively" here could mean:

1) both Eddie and Freddie traveled to city B, then they both "doubled back" to city C (which is what I assumed, especially given test writers' penchant for subtle details); or

2) only Eddie went to city B and only Freddie went to city C.

"Respectively" typically should come at or near the end of a sentence, as long as one-to-one correspondence to its two referents is direct and apparent. "Respectively" modifies "travel," but the latter involves both the travelers and their destinations.

Yoohanna, the best I can say is that when you see the word "respectively," and it is not clear what "respectively" refers to, AND your answer doesn't show up in the choices, look for other things in the sentence to which "respectively" might refer.

The ambiguity is frustrating in an otherwise good question. YMMV
Director
Director
User avatar
P
Joined: 27 May 2012
Posts: 606
Premium Member
Re: Eddy and Freddy start simultaneously from city A and they travel to  [#permalink]

Show Tags

New post 05 Sep 2018, 07:26
1
Bunuel wrote:
Eddy and Freddy start simultaneously from city A and they travel to City B and City C respectively. Eddy takes 3 hours and Freddy takes 4 hours to complete the journey. If the distance between City A and City B is 600 kms and City A and City C is 300 kms. What is the ratio of their average speed of travel? (Eddy: Freddy)

A. 8/3
B. 3/8
C. 8/5
D. 5/8
E. 5/3


Dear Moderator,
Found this Distance , rate and speed problem in the combination section, hope you will do the needful. Thank you.
_________________

- Stne

Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 50585
Re: Eddy and Freddy start simultaneously from city A and they travel to  [#permalink]

Show Tags

New post 05 Sep 2018, 07:35
stne wrote:
Bunuel wrote:
Eddy and Freddy start simultaneously from city A and they travel to City B and City C respectively. Eddy takes 3 hours and Freddy takes 4 hours to complete the journey. If the distance between City A and City B is 600 kms and City A and City C is 300 kms. What is the ratio of their average speed of travel? (Eddy: Freddy)

A. 8/3
B. 3/8
C. 8/5
D. 5/8
E. 5/3


Dear Moderator,
Found this Distance , rate and speed problem in the combination section, hope you will do the needful. Thank you.

_______________
Edited. Thank you.
_________________

New to the Math Forum?
Please read this: Ultimate GMAT Quantitative Megathread | All You Need for Quant | PLEASE READ AND FOLLOW: 12 Rules for Posting!!!

Resources:
GMAT Math Book | Triangles | Polygons | Coordinate Geometry | Factorials | Circles | Number Theory | Remainders; 8. Overlapping Sets | PDF of Math Book; 10. Remainders | GMAT Prep Software Analysis | SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) | Tricky questions from previous years.

Collection of Questions:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


What are GMAT Club Tests?
Extra-hard Quant Tests with Brilliant Analytics

GMAT Club Bot
Re: Eddy and Freddy start simultaneously from city A and they travel to &nbs [#permalink] 05 Sep 2018, 07:35
Display posts from previous: Sort by

Eddy and Freddy start simultaneously from city A and they travel to

  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®.