GRE Prep 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.
Zoe needs to drive 879 miles in 24 hours. She will need seven rest bre
[#permalink]
03 Jun 2021, 10:00
03 Jun 2021, 10:00
Expert Reply
00:00
Question Stats:
85% (01:18) correct
14% (00:40) wrong based on 21 sessions
Hide Show timer Statistics
Zoe needs to drive 879 miles in 24 hours. She will need seven rest breaks of a half hour each, during which she will not be driving. Approximately what speed, in miles per hour, will she need to average during the periods when she is driving to finish the journey in time?
40
41
42
43
44
40
41
42
43
44
Retired Moderator
Joined: 16 Apr 2020
Status:Founder & Quant Trainer
Affiliations: Prepster Education
Posts: 1546
Given Kudos: 172
Location: India
WE:Education (Education)
Re: Zoe needs to drive 879 miles in 24 hours. She will need seven rest bre
[#permalink]
03 Jun 2021, 11:31
03 Jun 2021, 11:31
Carcass wrote:
Zoe needs to drive 879 miles in 24 hours. She will need seven rest breaks of a half hour each, during which she will not be driving. Approximately what speed, in miles per hour, will she need to average during the periods when she is driving to finish the journey in time?
40
41
42
43
44
40
41
42
43
44
Since she requires 7 breaks of 0.5 Hr each, she will not be driving for 7(0.5) = 3.5 Hrs
Now, she will be covering 879 miles in 24 - 3.5 = 20.5 Hrs
Time = \(\frac{879}{20.5}\) = 42.87 = 43 Miles/Hr (Approx.)
Hence, option D
gmatclubot
Re: Zoe needs to drive 879 miles in 24 hours. She will need seven rest bre [#permalink]
03 Jun 2021, 11:31
Moderators:
