Last visit was: 02 May 2026, 01:14 It is currently 02 May 2026, 01:14
Home
Messages
Tests
Schools
Events
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.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel
Back to Forum
Create Topic
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 01 May 2026
Posts: 110,003
Own Kudos:
812,376
Given Kudos: 105,976
Products:
GMAT Club Tests Forum Quiz
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 110,003
Kudos: 812,376
Sarah is traveling from City A to City B. The distance between these 17 Jan 2024, 13:00
Kudos
Add Kudos
Bookmarks
Bookmark this Post
00:00
Start Timer
Pause Timer
Resume Timer
Show Answer
Hide
Show
History
E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!

Difficulty:

35% (medium)

Question Stats:

76% (02:34) correct 24% (02:46) wrong based on 116 sessions

History

Date
Time
Result
Not Attempted Yet
Sarah is traveling from City A to City B. The distance between these two cities is 185 miles, and she planned to arrive at City B in 2 hours and 30 minutes. Her average speed for the first 1 hour and 40 minutes was 75 miles per hour, but then she realized that she should slow down to drive more safely. If she still wanted to arrive at her destination on time, at what speed should she drive?

A) 60.0 miles per hour
B) 64.0 miles per hour
C) 68.0 miles per hour
D) 70.5 miles per hour
E) 72.0 miles per hour
ShowHide Answer
Official Answer
E
User avatar
VivekSri
User avatar
Joined: 01 May 2022
Last visit: 05 Feb 2026
Posts: 468
Own Kudos:
775
 [2]
Given Kudos: 117
Location: India
WE:Engineering (Consulting)
Posts: 468
Kudos: 775
 [2]
Sarah is traveling from City A to City B. The distance between these 17 Jan 2024, 21:50
2
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
$94,000 Sarah is traveling from City A to City B. The distance between these two cities is 185 miles, and she planned to arrive at City B in 2 hours and 30 minutes. Her average speed for the first 1 hour and 40 minutes was 75 miles per hour, but then she realized that she should slow down to drive more safely. If she still wanted to arrive at her destination on time, at what speed should she drive?

A) 60.0 miles per hour
B) 64.0 miles per hour
C) 68.0 miles per hour
D) 70.5 miles per hour
E) 72.0 miles per hour
Show more

OA is E.
Attachment:
Screenshot_20240118_101833_Samsung Notes.jpg
Screenshot_20240118_101833_Samsung Notes.jpg [ 180.85 KiB | Viewed 3349 times ]
User avatar
fahdman
User avatar
Joined: 23 Nov 2023
Last visit: 07 Mar 2024
Posts: 12
Own Kudos:
1
Given Kudos: 55
Posts: 12
Kudos: 1
Sarah is traveling from City A to City B. The distance between these 18 Feb 2024, 11:55
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel,
can you postyour explanation? I did not understand the first answer.

Best.
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 01 May 2026
Posts: 110,003
Own Kudos:
812,376
 [1]
Given Kudos: 105,976
Products:
GMAT Club Tests Forum Quiz
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 110,003
Kudos: 812,376
 [1]
Sarah is traveling from City A to City B. The distance between these 18 Feb 2024, 13:53
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
 
fahdman
Bunuel,
can you postyour explanation? I did not understand the first answer.

Best.
Show more
­Sarah is traveling from City A to City B. The distance between these two cities is 185 miles, and she planned to arrive at City B in 2 hours and 30 minutes. Her average speed for the first 1 hour and 40 minutes was 75 miles per hour, but then she realized that she should slow down to drive more safely. If she still wanted to arrive at her destination on time, at what speed should she drive?

A) 60.0 miles per hour
B) 64.0 miles per hour
C) 68.0 miles per hour
D) 70.5 miles per hour
E) 72.0 miles per hour

Sarah wants to cover 185 miles in 2 hours and 30 minutes, so in 5/2 hours.

In 1 hour and 40 minutes, or 5/3 hours, at 75 miles per hour, Sarah would have covered 5/3 * 75 = 125 miles. To cover the remaining 185 - 125 = 60 miles, in exactly 5/2 hours - 5/3 hours = 5/6 hours, she must average 60/(5/6) = 72 miles per hour.

Answer: E.­
Moderators:
Bunuel
Math Expert
110003 posts
Krunaal
Tuck School Moderator
852 posts