A certain taxi company charges $ 3.10 for the first...

Expert replies

Previous Topic Next Topic

BTGmoderatorLU: Moderator; Posts: 2650; Joined: Sun Oct 15, 2017 1:50 pmFollowed by: 6 members

by BTGmoderatorLU » Thu Dec 14, 2017 11:51 am

Timer

00:00

Your answer

Difficulty–

right wrong

Pick an answer to see how members did

A certain taxi company charges $ 3.10 for the first 1/5 of a mile plus $0.4 for each additional 1/5 of a mile. What would this company charge for a taxi ride that was 8 miles long?

A. $15.60
B. $16.00
C. $17.80
D. $18.70
E. $19.10

The OA is D.

I know that the solution should be Total($)= 3.10+0.4*(x/5), but I don't know how can I define the value of x, I don't understand.

Experts can you help with this PS question please? thanks!

Source: Beat The GMAT — Problem Solving | Thu Dec 14, 2017 11:51 am

GMAT/MBA Expert

Jay@ManhattanReview: GMAT Instructor; Posts: 3008; Joined: Mon Aug 22, 2016 6:19 amFollowed by: 34 members; Location: Grand Central / New York; Thanked: 470 times

by Jay@ManhattanReview » Thu Dec 14, 2017 9:06 pm

LUANDATO wrote:A certain taxi company charges $ 3.10 for the first 1/5 of a mile plus $0.4 for each additional 1/5 of a mile. What would this company charge for a taxi ride that was 8 miles long?

A. $15.60
B. $16.00
C. $17.80
D. $18.70
E. $19.10

The OA is D.

I know that the solution should be Total($)= 3.10+0.4*(x/5), but I don't know how can I define the value of x, I don't understand.

Experts can you help with this PS question please? thanks!

You have to count how many 1/5s are there in 8 miles. It's simple, there are 8*5 = 40 numbers of 1/5s are there.

Thus, the total charge = 3.10 + 0.4*(40 – 1) = 3.10 + 0.4*40 – 0.4 = 3.10 + 16 – 0.4 = $18.70.

The correct answer: D

Hope this helps!

-Jay
_________________
Manhattan Review GMAT Prep

Locations: Pasadena | Warsaw | Cairo | Kuala Lumpur | and many more...

Schedule your free consultation with an experienced GMAT Prep Advisor! Click here.

GMAT/MBA Expert

Scott@TargetTestPrep: GMAT Instructor; Posts: 8246; Joined: Sat Apr 25, 2015 10:56 amFollowed by: 29 members; Location: Los Angeles, CA; Thanked: 43 times

by Scott@TargetTestPrep » Mon Sep 23, 2019 5:11 pm

BTGmoderatorLU wrote:A certain taxi company charges $ 3.10 for the first 1/5 of a mile plus $0.4 for each additional 1/5 of a mile. What would this company charge for a taxi ride that was 8 miles long?

A. $15.60
B. $16.00
C. $17.80
D. $18.70
E. $19.10

We know that for the first 1/5 mile of the 8-mile trip, the taxi company charges $3.10. For the next 7 4/5 miles, each 1/5 of a mile will cost $0.40. We need to find out how many 1/5s are in 7 4/5.

Since 7 4/5 = 39/5, there are 39 1/5s in 7 4/5. Therefore, the total cost of the 8-mile trip would be:

$3.10 + 39($0.40)

$3.10 + $15.60

$18.70

Answer: D

Scott Woodbury-Stewart
Founder and CEO
[email protected]

See why Target Test Prep is rated 5 out of 5 stars on BEAT the GMAT. Read our reviews

Featured schoolRound 2 closes Jan 7, 2027 54 days left

Chicago Booth

Since 1982, 10 Booth faculty members have received the Nobel Prize in Economic Sciences, more than any other business school.

#3
U.S. News rank: $175,000
Median base salary: 670
Average GMAT Focus: 635
Students in the class

Apply to Booth Visit chicagobooth.edu See the full profile

Photo: Warren LeMay, CC BY-SA 2.0

GMAT Course Reviews

563 reviews

1168 reviews

431 reviews

359 reviews

147 reviews

5/5

5 Star (563 Reviews)

"Target Test Prep is the closest to the official version of the GMAT exam, about 99% accuracy in terms of the quality and quantity of information. The course has excellently created singular sets of focused lessons and tests for every possible topic that one could come across in the official GMAT exam."

"The TTP course maximizes the efficiency of the time you spend studying. It will take time and effort but I could almost guarantee that if you complete the course exactly as it is laid out you will get an amazing score. They also have a very responsive team willing to help with any questions you might have."

"TTP has two things that I think no other test prep company offers: A teaching approach that reinforces understanding and an attitude that will give you the mental preparedness needed to succeed on the test. TTP gives you a deep understanding of the concept you need to know while teaching you how to think."

Write a Review