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

It is currently 27 Jun 2019, 03:30

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

Ronald is a runner on the track team and is a great hurdler. All runne

  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: 55804
Ronald is a runner on the track team and is a great hurdler. All runne  [#permalink]

Show Tags

New post 05 Jan 2019, 09:15
00:00
A
B
C
D
E

Difficulty:

  55% (hard)

Question Stats:

62% (02:14) correct 38% (02:10) wrong based on 159 sessions

HideShow timer Statistics


Ronald is a runner on the track team and is a great hurdler. All runners on the track team are either sprinters or long distance runners, but a few long distance runners do not run the sprint because they are not fast enough. Hurdlers never run long distance because they lack the endurance necessary. Therefore, Ronald must be fast.

For the conclusion drawn above to be logically correct, which of the following must be true?


A. Sprinters are faster than hurdlers.

B. All runners on the track team who run hurdles also run long distance.

C. Hurdling requires more endurance than running long distance.

D. All sprinters are fast.

E. Every runner on the track team who is fast is a sprinter.

_________________
Senior PS Moderator
User avatar
D
Status: It always seems impossible until it's done.
Joined: 16 Sep 2016
Posts: 749
GMAT 1: 740 Q50 V40
GMAT 2: 770 Q51 V42
GMAT ToolKit User Reviews Badge
Re: Ronald is a runner on the track team and is a great hurdler. All runne  [#permalink]

Show Tags

New post 07 Jan 2019, 09:45
Let's break down the argument -

Ronald is a runner on the track team and is a great hurdler. All runners on the track team are either sprinters or long distance runners, but a few long distance runners do not run the sprint because they are not fast enough. Hurdlers never run long distance because they lack the endurance necessary.


Given the above: Since Ronald is on the track team -> he is either a sprinter or a long-distance runner. Also since he is a hurdler -> he is not a long distance runner.
Therefore Ronald is definitely a sprinter.

Note - Some long distance runners do not sprint because they lack speed. But this info is about long-distance runners and it does not give us any info about sprinters.

But what is the conclusion given in the argument? - Therefore, Ronald must be fast.

but we could only conclude that he is a sprinter from given info.
So for the conclusion to be true - being a part of the latter group should ensure the former condition. Hence all sprinters are fast.


Let us look at the options -
A. Sprinters are faster than hurdlers. Unnecessary comparison. Discard.

B. All runners on the track team who run hurdles also run long distance. Reverse logic. Also irrelevant. Discard.

C. Hurdling requires more endurance than running long distance. Real world trap. Also irrelevant. Discard.

D. All sprinters are fast. Bingo - this is exactly what we are looking for.

E. Every runner on the track team who is fast is a sprinter. TRAP - Reverse logic of what we are looking for. Discard.

Hope this helps.
_________________
Regards,
Gladi



“Do. Or do not. There is no try.” - Yoda (The Empire Strikes Back)
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 55804
Re: Ronald is a runner on the track team and is a great hurdler. All runne  [#permalink]

Show Tags

New post 15 Jan 2019, 05:54
Bunuel wrote:
Ronald is a runner on the track team and is a great hurdler. All runners on the track team are either sprinters or long distance runners, but a few long distance runners do not run the sprint because they are not fast enough. Hurdlers never run long distance because they lack the endurance necessary. Therefore, Ronald must be fast.

For the conclusion drawn above to be logically correct, which of the following must be true?


A. Sprinters are faster than hurdlers.

B. All runners on the track team who run hurdles also run long distance.

C. Hurdling requires more endurance than running long distance.

D. All sprinters are fast.

E. Every runner on the track team who is fast is a sprinter.


KAPLAN OFFICIAL EXPLANATION:



D

Conclusion: Ronald must be fast.

Evidence: We are given that Ronald is a hurdler, and that all the runners on the track team are either sprinters or long distance runners, but no hurdlers are long distance runners. Therefore Ronald, a hurdler, must also be a sprinter. For the conclusion to be logically correct, (D) must be true because if Ronald is a sprinter, and all sprinters are fast, then Ronald must be fast.

(A) makes no sense because the argument states that all hurdlers are sprinters; (B), (C), and (E) directly contradict statements made in the argument.
_________________
GMAT Club Bot
Re: Ronald is a runner on the track team and is a great hurdler. All runne   [#permalink] 15 Jan 2019, 05:54
Display posts from previous: Sort by

Ronald is a runner on the track team and is a great hurdler. All runne

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


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