Due to construction, the speed limit along an 8-mile section of highway is reduced from 55 miles per hour to 35 miles

This topic has expert replies
Moderator
Posts: 7187
Joined: Thu Sep 07, 2017 4:43 pm
Followed by:23 members

Timer

00:00

Your Answer

A

B

C

D

E

Global Stats

Due to construction, the speed limit along an 8-mile section of highway is reduced from 55 miles per hour to 35 miles per hour. Approximately how many minutes more will it take to travel along this section of highway at the new speed limit than it would have taken at the old speed limit ?

(A) 5
(B) 8
(C) 10
(D) 15
(E) 24


OA A

Source: GMAT Prep

Legendary Member
Posts: 2218
Joined: Sun Oct 29, 2017 2:04 pm
Followed by:6 members
BTGmoderatorDC wrote:
Sat Jun 25, 2022 7:05 pm
Due to construction, the speed limit along an 8-mile section of highway is reduced from 55 miles per hour to 35 miles per hour. Approximately how many minutes more will it take to travel along this section of highway at the new speed limit than it would have taken at the old speed limit ?

(A) 5
(B) 8
(C) 10
(D) 15
(E) 24


OA A

Source: GMAT Prep
distance \(=\) rate \(\cdot \) time

distance / rate \(=\) time

\(\dfrac{8}{55} \cdot 60=\dfrac{96}{11}=9\) minutes

\(\dfrac{8}{35}=\dfrac{96}{7}=14\) minutes

\(14-9=5\) minutes

Therefore, A