Events & Promotions
|
|
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.
Nov 2007:30 AM PST
-08:30 AM PST
Learn what truly sets the UC Riverside MBA apart and how it helps in your professional growth
Nov 2011:00 AM EST
-11:59 PM EST
Don’t miss Target Test Prep’s biggest sale of the year! Grab 25% off any Target Test Prep GMAT plan during our Black Friday sale. Just enter the coupon code BLACKFRIDAY25 at checkout to save up to $625.
Nov 2211:00 AM IST
-01:00 PM IST
Do RC/MSR passages scare you? e-GMAT is conducting a masterclass to help you learn – Learn effective reading strategies Tackle difficult RC & MSR with confidence Excel in timed test environment- Nov 22
12:00 PM PST
-12:30 PM PST
olve GRE practice problems covering Quantitative reasoning, Verbal Reasoning, Text Completion, Sentence Equivalence, and Reading Comprehension Problems. Take this GRE practice quiz live with peers, analyze your GRE study progress, - Nov 23
10:00 AM PST
-11:00 AM PST
GMAT practice session and solve 30 challenging GMAT questions with other test takers in timed conditions, covering GMAT Quant, Data Sufficiency, Data Insights, Reading Comprehension, and Critical Reasoning questions. - Nov 23
11:00 AM IST
-01:00 PM IST
Attend this free GMAT Algebra Webinar and learn how to master the most challenging Inequalities and Absolute Value problems with ease. 
Nov 3010:00 AM EST
-11:59 PM EST
Get $325 off the TTP OnDemand GMAT masterclass by using the coupon code BLACKFRIDAY25 at checkout. If you prefer learning through engaging video lessons, TTP OnDemand GMAT is exactly what you need.
23 Jun 2015, 02:16
Kudos
Bookmarks
A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
75% (01:52) correct
25%
(02:07)
wrong
based on 975
sessions
History
Date
Time
Result
Not Attempted Yet
Did it take a certain ship less than 3 hours to travel 9 kilometers? (1 kilometer = 1,000 meters)
(1) The ship's average speed over the 9 kilometers was greater than 55 meters per minute.
(2) The ship's average speed over the 9 kilometers was less than 60 meters per minute.
Kudos for a correct solution.
(1) The ship's average speed over the 9 kilometers was greater than 55 meters per minute.
(2) The ship's average speed over the 9 kilometers was less than 60 meters per minute.
Kudos for a correct solution.
29 Jun 2015, 07:20
Kudos
Bookmarks
Bunuel
MANHATTAN GMAT OFFICIAL SOLUTION:
Notice that the statements provide rates in meters per minute. A good first step here is to figure out how fast the ship would have to travel to cover 9 kilometers in 3 hours. Create an RTD chart, and convert kilometers to meters and hours to minutes:
180r= 9,000
r= 50
The question asks whether the ship traveled 9 kilometers in less than 3 hours. The ship must travel faster than 50 meters/min to make it in less than 3 hours. Therefore, the question is really asking, is r > 50?
(1): SUFFICIENT: If the average speed of the ship was greater than 55 meters per minute, then r > 55. Thus, r is definitely greater than 50.
(2): INSUFFICIENT: If the average speed of the ship was less than 60 meters per minute, then r < 60. This is not enough information to guarantee that r > 50.
Answer: A.
Attachment:
2015-06-29_1819.png [ 5.2 KiB | Viewed 13171 times ]
General Discussion
23 Jun 2015, 10:52
Kudos
Bookmarks
Bunuel
Question : Did it take a certain ship less than 3 hours to travel 9 kilometers?
Speed = Distance / Time = 9/3 = 3 km per hour
Question REDEFINED: Is the Speed of certain Ship less than 3 km per hour?
Statement 1: The ship's average speed over the 9 kilometers was greater than 55 meters per minute.
i.e Average Speed of Ship > 55 meters per min
i.e. Average Speed of Ship > (55/1000) / (1/60)
i.e. Average Speed of Ship > 55*60 / 1000 Km per hour
i.e. Average Speed of Ship > 3.3 Km per Hour
hence, SUFFICIENT
Statement 2: The ship's average speed over the 9 kilometers was less than 60 meters per minute.
i.e Average Speed of Ship < 60 meters per min
i.e. Average Speed of Ship < (60/1000) / (1/60)
i.e. Average Speed of Ship < 60*60 / 1000 Km per hour
i.e. Average Speed of Ship < 3.6 Km per Hour
i.e. Average speed could be greater than or less than 3 km per hour
hence, NOT SUFFICIENT
Answer: Option
