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.
Jun 0808:00 PM EDT
-10:00 PM EDT
Master the GMAT with expert live instruction, a personalized study plan, and real-time support. Includes 40 hours of online classes plus 6 months of access to the TTP GMAT OnDemand video course. Mon/Wed June 8, 2026 →August 12, 2026 8:00pm-10:00pm EST
Jun 1006:00 AM PDT
-06:15 PM PDT
Register for the GMAT Club Virtual MBA Spotlight Fair – the world’s premier event for serious MBA candidates. This is your chance to hear directly from Admissions Directors at nearly every Top 30 MBA program..- Jun 10
10:00 AM PDT
-11:00 AM PDT
Scoring 715 on the GMAT Focus Edition requires more than just learning formulas, memorizing concepts, or solving hundreds of questions. In this episode, Nishant shares how he improved his GMAT preparation by focusing on application of concepts, and more. 
Jun 1111:00 AM EDT
-01:00 PM EDT
TTP GMAT OnDemand gives serious students 400+ hours of expert video instruction, the full TTP course, AI support, weekly office hours, and a 715+ score guarantee—all built for elite GMAT score improvement.
Updated on: 02 Oct 2023, 11:41
Originally posted by Sajjad1994 on 11 Mar 2021, 07:30.
Last edited by BottomJee on 02 Oct 2023, 11:41, edited 2 times in total.
Last edited by BottomJee on 02 Oct 2023, 11:41, edited 2 times in total.
Moved to new forum
Kudos
Bookmarks
Miles per
hour: \(\frac{60}{m}\) Hours to run
an x-mile race: \(\frac{xm}{60}\)
hour: \(\frac{60}{m}\) Hours to run
an x-mile race: \(\frac{xm}{60}\)
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
59% (01:52) correct
41%
(01:53)
wrong
based on 928
sessions
History
Date
Time
Result
Not Attempted Yet
Mo runs a consistent m-minutes per mile pace no matter the distance.
From the grid below, choose the answers that represent his pace in miles per hour and the number of hours it takes him to run an x-mile race.
From the grid below, choose the answers that represent his pace in miles per hour and the number of hours it takes him to run an x-mile race.
|
Miles per hour |
Hours to run an x-mile race |
|
| \(60m\) | ||
| \(\frac{m}{60}\) | ||
| \(\frac{60}{m}\) | ||
| \(\frac{xm}{60}\) | ||
| \(\frac{60m}{x}\) | ||
| \(\frac{60x}{m}\) |
ShowHide Answer
Official Answer
Miles per
hour: \(\frac{60}{m}\) Hours to run
an x-mile race: \(\frac{xm}{60}\)
hour: \(\frac{60}{m}\) Hours to run
an x-mile race: \(\frac{xm}{60}\)
Manutdfn14
Current Student
Joined: 30 Aug 2021
Last visit: 07 Dec 2022
Posts: 8
Own Kudos:
Given Kudos: 3
Location: United States (CA)
Schools: Wharton (A)
06 Nov 2021, 07:47
Kudos
Bookmarks
Sajjad1994 Would appreciate some help on this one if you wouldn't mind. Here's what I did, what am I doing incorrectly?
(m) min/mile -> (1/m) mile/min x (60min/1 hour) = (60/m) mile/hour.......OA says (xm/60)
Let's use real numbers....if I run 6 min/mile pace (m) and run 10 miles (x), I complete it in 60min or 1 hour.....(xm/60) I am getting units of hours not mph
If I am correct, then I get (xm/60) hours to complete x mile race
---> (60/m) miles/hour -> (m/60) hour/mile x (x) mi = (xm/60) hours.....OA says (60m/x) which is units of min/mile squared
thanks!
(m) min/mile -> (1/m) mile/min x (60min/1 hour) = (60/m) mile/hour.......OA says (xm/60)
Let's use real numbers....if I run 6 min/mile pace (m) and run 10 miles (x), I complete it in 60min or 1 hour.....(xm/60) I am getting units of hours not mph
If I am correct, then I get (xm/60) hours to complete x mile race
---> (60/m) miles/hour -> (m/60) hour/mile x (x) mi = (xm/60) hours.....OA says (60m/x) which is units of min/mile squared
thanks!
06 Nov 2021, 10:08
Kudos
Bookmarks
Official Explanation
As this problem exemplifies, many Two-Part Analysis problems are simply GMAT quantitative problems with the Two-Part format twist. And when Problem Solving questions feature "undone math" (expressions with the variables still in them) in the answer choices, you can often simply pick numbers to avoid the algebra and test the answer choices on your own.
Here the "tricky part" is that you're given Mo's rate in minutes per mile but then asked about miles per hour and the number of hours that it takes him to finish a race. So if you're picking numbers, you'll want to pick a number that easily converts from minutes per mile to miles per hour. For that reason, you might choose \(m=10\) so that if it takes him 10 minutes to run a mile, he'll run 6 miles in an hour.
If you then assess the answer choices, you'll see that plugging \(m=10\) into the answer choices only yields a correct answer of 6 miles per hour when you plug it into choice (C), \(\frac{60}{m}.\)
To then assess the second column, again try to pick easy numbers to work with. Since you know that Mo runs 6 miles per hour with your \(m=10\) choice, you'll want to pick a number of miles that will cleanly work with 6 miles per hour. If you then say that \(x=12\), you'll know that at 6 miles per hour to run 12 miles will take 2 hours. So as you plug in \(m=10, x=12\) you're looking for the answer 2.
As you plug these in, you'll see that only choice (D) yields 2. \(\frac{xm}{60}\) becomes \(\frac{(10)(12)}{60} = \frac{120}{60} = 2,\) so choice (D) is the correct response for that column.
As this problem exemplifies, many Two-Part Analysis problems are simply GMAT quantitative problems with the Two-Part format twist. And when Problem Solving questions feature "undone math" (expressions with the variables still in them) in the answer choices, you can often simply pick numbers to avoid the algebra and test the answer choices on your own.
Here the "tricky part" is that you're given Mo's rate in minutes per mile but then asked about miles per hour and the number of hours that it takes him to finish a race. So if you're picking numbers, you'll want to pick a number that easily converts from minutes per mile to miles per hour. For that reason, you might choose \(m=10\) so that if it takes him 10 minutes to run a mile, he'll run 6 miles in an hour.
If you then assess the answer choices, you'll see that plugging \(m=10\) into the answer choices only yields a correct answer of 6 miles per hour when you plug it into choice (C), \(\frac{60}{m}.\)
To then assess the second column, again try to pick easy numbers to work with. Since you know that Mo runs 6 miles per hour with your \(m=10\) choice, you'll want to pick a number of miles that will cleanly work with 6 miles per hour. If you then say that \(x=12\), you'll know that at 6 miles per hour to run 12 miles will take 2 hours. So as you plug in \(m=10, x=12\) you're looking for the answer 2.
As you plug these in, you'll see that only choice (D) yields 2. \(\frac{xm}{60}\) becomes \(\frac{(10)(12)}{60} = \frac{120}{60} = 2,\) so choice (D) is the correct response for that column.
