Last visit was: 21 Sep 2026, 03:15

It is currently 21 Sep 2026, 03:15

Toolkit

Practice Tests

Quantitative Questions

Problem Solving (PS)

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

Request Expert Reply

Confirm Cancel

Sep 21
Live Online Bootcamp Class with Top GMAT Expert Chris Peckover
07:00 PM EDT
-
10:00 PM EDT
Boost your GMAT score in less than one month in a live online class + 6 months access to TTP OnDemand video courses included!
Sep 23
GMAT 705 in 30 days: Best Study Strategy for Working Professionals
12:30 AM EDT
-
01:30 AM EDT
Learn how Keshav, a Chartered Accountant, scored an impressive 705 on GMAT in just 30 days with GMATWhiz's expert guidance. In this video, he shares preparation tips and strategies that worked for him, including the mock, time management, and more
Sep 24
Stuck at 645 After 3 Attempts: The Problem Wasn't Effort
01:30 AM EDT
-
01:30 AM EDT
Tejas studied hard but kept repeating the same mistakes. After 3 attempts at 645, a focused 4-week strategy helped him identify and fix what was holding him back—leading to a 695 with just 12–15 hours of study per week.
Sep 26
Start your free trial!
06:00 PM PDT
-
07:00 PM PDT
Free- full-length test + 15 concept videos + 150+ short videos + study plan!

Back to Forum

Create Topic

GMAT Club World Cup 2026 (Day 2): A delivery van has a mileage of 14

1 2 3 4 5 6 7 8

Vijendra.D

Joined: 12 Jun 2024

Last visit: 13 Aug 2026

Posts: 27

Own Kudos:

[1]

Given Kudos: 148

GMAT Focus 1: 575 Q81 V81 DI74 Verified score

GMAT Focus 2: 615 Q85 V78 DI78 Verified score

Posts: 27

Kudos: 15

[1]

08 Jul 2026, 00:13

Kudos

Bookmarks

Today, We are going to solve this using unitary method

Given that in initial mileage the car can travel 14 miles in 1 gallon

So we can write it as

14 miles -------> 1 gallon

Or

14 miles -------> 128 ounces
X miles. -------> 5120 ounces

Solving for X

X == 5120 * 14 / 128 === 560 miles

---------------------------------------------------

After installing fuel system the efficiency increased. Now to travel 14 miles we need only 70 % of fuel i.e. 0.7 gallon of fuel only

14 miles -------> 0.7 Gallon

Or

14 miles -------> 0.7 * 128 ounces
Y miles. -------> 5120 ounces

Solving for Y

Y == (5120 * 14) / (0.7* 128) === 800 miles

---------------------------------------------------

Now we are asked ::: how many more miles can the van travel on a full tank after the system is installed

Therefore Y - X ==== 800 - 560 ==== 240

Hence answer option C

canopyinthecity

Joined: 12 Jul 2025

Last visit: 20 Sep 2026

Posts: 171

Own Kudos:

110

[1]

Given Kudos: 40

Products:

Posts: 171

Kudos: 110

[1]

08 Jul 2026, 00:32

Kudos

Bookmarks

Original mileage = 14 M/G
After installation, new mileage = 14M/0.7G = 20 M/G
So 6 miles benefit per gallon

Total miles = 5120/128 =40
Total benefit for 40 miles =40*6=240

So C is the answer

GulfTube

Joined: 13 Apr 2026

Last visit: 17 Aug 2026

Posts: 210

Own Kudos:

[1]

Given Kudos: 77

Posts: 210

Kudos: 71

[1]

08 Jul 2026, 00:52

Kudos

Bookmarks

tank capacity = 5120 ounces = 5120/128 = 40 gallons

before system:
14 miles in a gallon
in 40 gallons: 40*14 = 560 miles

after system:
14 miles in 0.7 gallon
in 40 gallons: (40*14)/0.7 = 800 miles

800-560 = 240 more miles with new system. Answer C

Praful_0810

Joined: 08 Jul 2023

Last visit: 20 Sep 2026

Posts: 36

Own Kudos:

[1]

Given Kudos: 18

Location: India

GMAT Focus 1: 585 Q82 V75 DI80 Verified score

GMAT 1: 550 Q47 V23 Verified score

GMAT Focus 1: 585 Q82 V75 DI80 Verified score

GMAT 1: 550 Q47 V23 Verified score

Posts: 36

Kudos: 14

[1]

08 Jul 2026, 01:50

Kudos

Bookmarks

We are given that a delivery van has a mileage of 14 mpg
After a fuel-saving system is installed, the van will use only 70% as much fuel as it used
before to travel the same distance.

Before, van used 1 Gallon to cover 14 mile,
and after system installation, van will use 0.7 Gallon to cover 14 miles; So new mileage will be = 14/0.7 = 20 mpg

So after fuel-saving system installation, van can cover 6 more mile per gallon.

Capacity of van's fuel tank = 5120 ounces, and 128 ounces = 1 Gallon

So fuel tank's capacity = 5120 / 128 = 40 Gallon

An question is how many more miles can a van travel on a full fuel tank after system is installed

= 40 (g) * 6 (mpg)
= 240 miles
So option C is the correct answer.

JiriNovacek

Joined: 14 Dec 2025

Last visit: 12 Sep 2026

Posts: 33

Own Kudos:

[1]

Posts: 33

Kudos: 23

[1]

08 Jul 2026, 02:10

Kudos

Bookmarks

I solved this using the direct proportion method. It's an easy one.

Attachments

IMG_7619.jpeg [ 1.27 MiB | Viewed 143 times ]

rajdeep212003

Joined: 11 Dec 2024

Last visit: 21 Sep 2026

Posts: 160

Own Kudos:

[1]

Given Kudos: 18

Location: India

Schools: ISB '27 Kellogg INSEAD MiM '26

Posts: 160

Kudos: 81

[1]

08 Jul 2026, 02:15

Kudos

Bookmarks

i got option C !! I found this one easy !!
-- 5120 / 128 = 40 g ,, now 40 * 14 = 560 ,,
-- Earlier it is 70% now it is 100% that's why 560 / 70 % = 800 ( new milage )
-- now new - old = 800 - 560 = 240

Pratyaksh1907

Joined: 17 Nov 2024

Last visit: 19 Sep 2026

Posts: 55

Own Kudos:

[1]

Given Kudos: 43

Posts: 55

Kudos: 23

[1]

08 Jul 2026, 03:19

Kudos

Bookmarks

140 miles in 10 g (before), now 140 mils in 7 g i.e 20 miles per gallon.
1g = 128 ounces
multiply 40 both sides'
40g = 5120 ounces
Therefore, full tank capacity is 40 g
before,
distance = 14 * 40 = 560 miles
now,
distance = 20 * 40 = 800 miles

hence, 800 - 560 = 240 miles morre

Bunuel

A delivery van has a mileage of 14 miles per gallon. After a fuel-saving system is installed, the van will use only 70% as much fuel as it used before to travel the same distance. If the van’s fuel tank holds 5,120 ounces of fuel, how many more miles can the van travel on a full tank after the system is installed? (1 gallon = 128 ounces)

A. 168
B. 224
C. 240
D. 560
E. 800

This question was provided by GMAT Club
for the GMAT World Cup Competition

Win over $30,000 in prizes such as Courses, Tests, Private Tutoring, and more

⚠️ Important: GMAT Club does not allow AI-generated posts. AI-generated solutions are not eligible for kudos, and users who post them may face moderation action, including a ban.

doloribusnobis

Joined: 01 Feb 2026

Last visit: 20 Sep 2026

Posts: 17

Own Kudos:

[1]

Given Kudos: 63

Products:

Posts: 17

Kudos: 13

[1]

08 Jul 2026, 03:31

Kudos

Bookmarks

Average given is 14 miles per gallon.
Capacity – 5120 ounces = 5120/128 = 40 gallons.

before installation of the fuel-saving system,
Distance travelled with 40 gallons = 40 gallons * 14 miles/gallons = 560 miles

Now, 560 miles is travelled in 70% of the total fuel = 70% of 40 = 28 gallons

gallons of fuel left = 40 - 28 = 12 gallons

28 gallons -> 560 miles
12 gallons -> 560/28 *12

= 240 miles

JW555

Joined: 05 Jul 2026

Last visit: 19 Aug 2026

Posts: 28

Own Kudos:

[1]

Products:

Posts: 28

Kudos: 20

[1]

08 Jul 2026, 03:35

Kudos

Bookmarks

So, $\frac{{14mi}{1gl}[}{fraction]$ after change $[fraction]{14mi}{0.7gl}}$
Therefore that's 20mi per gallon now. $5,120 ounces=[fraction]{5,120 ounces}{128 ounces in gallon}= 40 gallons[/fraction], 40*20 - 40*14 =240 $

And the final answer is (C)

Bunuel

This question was provided by GMAT Club
for the GMAT World Cup Competition

Win over $30,000 in prizes such as Courses, Tests, Private Tutoring, and more

⚠️ Important: GMAT Club does not allow AI-generated posts. AI-generated solutions are not eligible for kudos, and users who post them may face moderation action, including a ban.

AngelUPENN

Joined: 17 Jun 2026

Last visit: 25 Jul 2026

Posts: 36

Own Kudos:

[1]

Given Kudos: 1

Products:

Posts: 36

Kudos: 29

[1]

08 Jul 2026, 03:45

Kudos

Bookmarks

It’s C.240
Because:
Tank = 5120/128 = 40 gallons
Before: 40x14 = 560 miles
After: new mileage = 14/0,7 = 20 mpg
=> 40x20 = 800 miles.
Difference = 800-560 = 240

Bunuel

This question was provided by GMAT Club
for the GMAT World Cup Competition

Win over $30,000 in prizes such as Courses, Tests, Private Tutoring, and more

⚠️ Important: GMAT Club does not allow AI-generated posts. AI-generated solutions are not eligible for kudos, and users who post them may face moderation action, including a ban.

Sohanm99

Joined: 05 Dec 2025

Last visit: 20 Sep 2026

Posts: 18

Own Kudos:

[1]

Given Kudos: 11

Location: India

Schools: ISB '27 INSEAD Aug '27

GPA: 8.2

Schools: ISB '27 INSEAD Aug '27

Posts: 18

Kudos: 15

[1]

08 Jul 2026, 03:58

Kudos

Bookmarks

[quote="Bunuel"]A delivery van has a mileage of 14 miles per gallon. After a fuel-saving system is installed, the van will use only 70% as much fuel as it used before to travel the same distance. If the van’s fuel tank holds 5,120 ounces of fuel, how many more miles can the van travel on a full tank after the system is installed? (1 gallon = 128 ounces)

A. 168
B. 224
C. 240
D. 560
E. 800

5120 ounces = 5120/128 = 40 gallons

Earlier the car used to drive 14 mi/g

After system installation the car drives with 70% of the earlier fuel consumption rate. i.e. @ 14/0.7 = 20 mi/g

With 40 gallons of fuel the car used to travel = 14×40 miles

With same amt. Of fuel the car can now travel 20×40 miles

Hence, the increase in travel distance = 20×40 - 14×40 = 240 miles. .. Ans. C.

JollyScale

Joined: 04 Jul 2026

Last visit: 13 Sep 2026

Posts: 55

Own Kudos:

[1]

Location: India

Schools: HBS '27 CBS '27 Stanford '27

GPA: 6.87/7

WE:Marketing (Finance: Diversified Financial Services)

Products:

Schools: HBS '27 CBS '27 Stanford '27

Posts: 55

Kudos: 49

[1]

08 Jul 2026, 04:05

Kudos

Bookmarks

c. 240

New mileage - 70/100 x 128 = 89.6 ounces for 14 miles

5120/89.6 then x14 = 800

Old Mileage-560

800-560 = 240

C

Bunuel

This question was provided by GMAT Club
for the GMAT World Cup Competition

Win over $30,000 in prizes such as Courses, Tests, Private Tutoring, and more

⚠️ Important: GMAT Club does not allow AI-generated posts. AI-generated solutions are not eligible for kudos, and users who post them may face moderation action, including a ban.

puncuz

Joined: 03 Feb 2025

Last visit: 07 Sep 2026

Posts: 27

Own Kudos:

[1]

Given Kudos: 45

Posts: 27

Kudos: 16

[1]

08 Jul 2026, 04:26

Kudos

Bookmarks

I am unable to upload solution from notebook.
So without system
1 gallon ----> 14 miles
128 ounces ----> 14 miles
5120 ounces ----> 14 * 5120/128=560 miles

with system, 560/0.7=800 miles

so the difference is 800-560 =240 miles C

Zorro23

Joined: 27 Jun 2026

Last visit: 14 Sep 2026

Posts: 10

Own Kudos:

[1]

Given Kudos: 11

Posts: 10

Kudos: 7

[1]

08 Jul 2026, 04:28

Kudos

Bookmarks

Bunuel

This question was provided by GMAT Club
for the GMAT World Cup Competition

Win over $30,000 in prizes such as Courses, Tests, Private Tutoring, and more

⚠️ Important: GMAT Club does not allow AI-generated posts. AI-generated solutions are not eligible for kudos, and users who post them may face moderation action, including a ban.

In 1 gallon- 14 miles travel
After installation of fuel saving system, it consumes 70% fuel, implies, in 0.7 gallon- 14 miles; therefore new mileage- 1 gallon = 14/0.7 = 20 miles.
For 5120 ounces of fuel (5120/128 = 40 galon)-
Earlier, it would travel- 40*14= 560 miles
Now, it would travel- 40*20=800 miles.
Additional miles travel= 800-560 = 240 miles.

Brownieeee

Joined: 24 Nov 2024

Last visit: 21 Sep 2026

Posts: 67

Own Kudos:

[1]

Given Kudos: 17

Posts: 67

Kudos: 43

[1]

08 Jul 2026, 04:38

Kudos

Bookmarks

Finding capcity of tank in gallons:
5,120/28 = 40 Gallons

How far the van go before the upgrade
old mileage = 14 miles per gallon
40 gallons*14mpg= 560 miles

new mileage after upgrade
the van now only needs 70% as much fuel go he same distance. that meant it got more efficient
so we divide the old mileage by 0.70
14/0.70 = 20 mpg

how far the van go after the upgrade
40 gallons*20 mpg = 800 miles

how many more miles is that
800-560= 240 miles

Bunuel

This question was provided by GMAT Club
for the GMAT World Cup Competition

Win over $30,000 in prizes such as Courses, Tests, Private Tutoring, and more

⚠️ Important: GMAT Club does not allow AI-generated posts. AI-generated solutions are not eligible for kudos, and users who post them may face moderation action, including a ban.

SRIVISHUDDHA22

Joined: 08 Jan 2025

Last visit: 19 Aug 2026

Posts: 120

Own Kudos:

[1]

Given Kudos: 371

Location: India

Schools: ISB '26

GPA: 9

Products:

Schools: ISB '26

Posts: 120

Kudos: 80

[1]

08 Jul 2026, 04:41

Kudos

Bookmarks

1 gallon = 128 ounce. Tank has 5120 ounce = 5120/120= 40 gallon. 14 miles covered in 1 gallon . Originally covered = 14*40=560. New Delivery system 14 miles covered in using 0.7 gallon new distance covered = 14/0.7*40=800 miles . Extra miles covered =800-560=240

Bunuel

This question was provided by GMAT Club
for the GMAT World Cup Competition

Win over $30,000 in prizes such as Courses, Tests, Private Tutoring, and more

⚠️ Important: GMAT Club does not allow AI-generated posts. AI-generated solutions are not eligible for kudos, and users who post them may face moderation action, including a ban.

Sakshi1405

Joined: 04 Jul 2021

Last visit: 19 Sep 2026

Posts: 35

Own Kudos:

[1]

Given Kudos: 166

Location: India

Concentration: Entrepreneurship, Strategy

Schools: NTU Tuck '27 Stanford '27 Haas '27 HBS '27 Wharton '27 INSEAD Aug '27 LBS '27

GMAT Focus 1: 645 Q87 V82 DI77 Verified score

GPA: 2.88

WE:Supply Chain Management (Retail: E-commerce)

Schools: NTU Tuck '27 Stanford '27 Haas '27 HBS '27 Wharton '27 INSEAD Aug '27 LBS '27

GMAT Focus 1: 645 Q87 V82 DI77 Verified score

Posts: 35

Kudos: 33

[1]

08 Jul 2026, 04:42

Kudos

Bookmarks

Current mileage for the delivery van is 14 miles/gallon
After fuel-saving system is installed, mileage would be 14 miles/0.7 gallon = 20 miles/gallon

5120 ounces / 128 ounces = 40 gallons

So earlier with 40 gallons, distance travelled would be 560 miles
But with fuel saving system, in 40 gallons van could travel 800 miles

Hence,
800 - 560 = 240 miles additional could be travelled with fuel-saving system installed

Alternate way
14 miles/ gallon regularly
20 miles/ gallon with fuel saving system

So able to travel 6 miles/gallon extra
Thus with 40 gallons, 6*40=240 miles extra

Option C

Bunuel

This question was provided by GMAT Club
for the GMAT World Cup Competition

Win over $30,000 in prizes such as Courses, Tests, Private Tutoring, and more

⚠️ Important: GMAT Club does not allow AI-generated posts. AI-generated solutions are not eligible for kudos, and users who post them may face moderation action, including a ban.

niteshmotwani

Joined: 09 Nov 2025

Last visit: 21 Sep 2026

Posts: 227

Own Kudos:

Given Kudos: 16

Posts: 227

Kudos: 32

08 Jul 2026, 04:52

Kudos

Bookmarks

IMO - ANS is E = 800 Miles
Given => Mileage = 14Miles/Gallon and then it said after fuel saving install it will use only 70% so in simple word it says 14 miles/ 0.7 Gallon (little tricky to understand) we could say 1.3 * 14 miles but that would be wrong so after fuel saving installment the mileage would be 20 miles / gallon.
Then just basic mathematics Ounces to Gallon = 5120/128 = 40 Gallons so 20*40 = 800 miles option (E)

I do have one extra shortcut trick for this specific question if someone just multiple 14 miles/gallon to 40 Gallons he will get 560 and only 1 answer choice is bigger than that value so answer could be calculated that way as we understand without fuel save we could run 560 miles then more than that just 1 value but it will work for this specific question here answer choice help us.
Thanks!

Bunuel

This question was provided by GMAT Club
for the GMAT World Cup Competition

Win over $30,000 in prizes such as Courses, Tests, Private Tutoring, and more

⚠️ Important: GMAT Club does not allow AI-generated posts. AI-generated solutions are not eligible for kudos, and users who post them may face moderation action, including a ban.

jkkamau

Joined: 25 May 2020

Last visit: 19 Sep 2026

Posts: 285

Own Kudos:

244

[1]

Given Kudos: 148

Location: Kenya

Schools: Jones '26 (A$$)

GMAT 1: 730 Q50 V46 Verified score

GPA: 3.5

Products:

Schools: Jones '26 (A$$)

GMAT 1: 730 Q50 V46 Verified score

Posts: 285

Kudos: 244

[1]

08 Jul 2026, 05:07

Kudos

Bookmarks

Tank capacity in gallons is 5120/128= 40 gallons
Total distance at 14m/g= 14x40 = 560 Miles
Total distance after new system = 100/70x560= 800
Extra distance covered 800-560= 240 Miles
Ans C

Bunuel

This question was provided by GMAT Club
for the GMAT World Cup Competition

Win over $30,000 in prizes such as Courses, Tests, Private Tutoring, and more

⚠️ Important: GMAT Club does not allow AI-generated posts. AI-generated solutions are not eligible for kudos, and users who post them may face moderation action, including a ban.

Anchal02

Joined: 24 Jul 2024

Last visit: 05 Sep 2026

Posts: 10

Own Kudos:

[1]

Given Kudos: 8

Concentration: Sustainability, Technology

Posts: 10

Kudos: 11

[1]

08 Jul 2026, 05:11

Kudos

Bookmarks

So 14miles in 1 gallon, after installing the system, 14 miles in 0.7gallons so it is 20 miles in 1 gallon.

5120/ 128 =40 gallons

560 miles in 40 gallons in general, but after installing the system, 800 miles in 40 gallons
So 240 miles is the difference meaning 240 miles the van can travel after installing the system.