|
|
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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
19 Jan 2018, 11:03
Kudos
Bookmarks
B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
45%
(medium)
Question Stats:
59% (01:21) correct
41%
(01:34)
wrong
based on 151
sessions
History
Date
Time
Result
Not Attempted Yet
If s and t are positive, is s/t less than st ?
(1) s^2 > 1
(2) t^2 > 1
(1) s^2 > 1
(2) t^2 > 1
19 Jan 2018, 11:14
Kudos
Bookmarks
If s and t are positive, is s/t less than st ?
\(\frac{s}{t}\)<st
= 1<\(t^2\) ?
(1) \(s^2\) > 1
Not Sufficient
(2)\(t^2\) > 1
Sufficient
Ans B
\(\frac{s}{t}\)<st
= 1<\(t^2\) ?
(1) \(s^2\) > 1
Not Sufficient
(2)\(t^2\) > 1
Sufficient
Ans B
Updated on: 17 May 2021, 07:41
Originally posted by BrentGMATPrepNow on 03 Apr 2020, 11:04.
Last edited by BrentGMATPrepNow on 17 May 2021, 07:41, edited 1 time in total.
Last edited by BrentGMATPrepNow on 17 May 2021, 07:41, edited 1 time in total.
Kudos
Bookmarks
Bunuel
Given: s and t are positive
Target question: Is s/t less than st?
In other words: Is s/t < st?
This is a great candidate for rephrasing the target question.
Since we're told that t is POSITIVE, we can multiply both sides of the inequality by t to get: Is s < st²?
Since we're told that s is POSITIVE, we can divide both sides of the inequality by s to get: Is 1 < t²?
REPHRASED target question: Is 1 < t²?
Aside: the video below has tips on rephrasing the target question
Statement 1: s² > 1
Since we have no information about t, there's no way to answer the REPHRASED target question with certainty
Statement 1 is NOT SUFFICIENT
Statement 2: t² > 1
Perfect!
The answer to the REPHRASED target question is YES, it's true that 1 < t²
Since we can answer the REPHRASED target question with certainty, statement 2 is SUFFICIENT
Answer: B
Cheers,
Brent
RELATED VIDEOS
