GMAT Question of the Day - Daily to your Mailbox; hard ones only

 It is currently 11 Dec 2018, 05:33

# R1 Decisions:

HBS Chat - Decisions will be released at Noon ET  |  UVA Darden Chat  |  YouTube Live with Cornell Johnson @11am ET

### 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

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

## Events & Promotions

###### Events & Promotions in December
PrevNext
SuMoTuWeThFrSa
2526272829301
2345678
9101112131415
16171819202122
23242526272829
303112345
Open Detailed Calendar
• ### Free GMAT Prep Hour

December 11, 2018

December 11, 2018

09:00 PM EST

10:00 PM EST

Strategies and techniques for approaching featured GMAT topics. December 11 at 9 PM EST.
• ### The winning strategy for 700+ on the GMAT

December 13, 2018

December 13, 2018

08:00 AM PST

09:00 AM PST

What people who reach the high 700's do differently? We're going to share insights, tips and strategies from data we collected on over 50,000 students who used examPAL.

# A mechanized factory with over 3000 separate conveyor belts wants to

Author Message
TAGS:

### Hide Tags

Retired Moderator
Joined: 06 Jul 2014
Posts: 1235
Location: Ukraine
Concentration: Entrepreneurship, Technology
GMAT 1: 660 Q48 V33
GMAT 2: 740 Q50 V40
A mechanized factory with over 3000 separate conveyor belts wants to  [#permalink]

### Show Tags

18 Sep 2015, 03:48
1
2
00:00

Difficulty:

5% (low)

Question Stats:

89% (02:04) correct 11% (02:28) wrong based on 119 sessions

### HideShow timer Statistics

A mechanized factory with over 3000 separate conveyor belts wants to minimize the cost associated with maintenance, repair, and replacement of these belts. The conveyer belts currently are composed vulcanized rubber around a cotton web base, but the factory owners are investigating new plastic polymer design. For any given size belt, the costs for belts of the two compositions are comparable. Compared to the current rubber/cotton belts, the plastic polymer belts are lighter and easier to move, so operating the conveyor belts made of plastic polymer would consume less electric energy. A change from rubber/cotton belts to plastic polymer belts would require minor modification to some of the drive cylinders of the conveyor belts, but the costs of these changes are negligible.

Which of the following would it be most useful to know in determining whether switching to the plastic polymer conveyor belts would be likely to help minimize the factory's cost related to its conveyor belt system?

A) Whether a typical plastic polymer conveyor belt has an approximate serviceable life as least as long as the typical rubber/cotton belt of the same size and shape.
B) Whether, in remodeling, the factory plans to increase the total number of conveyor belts in its mechanized system.
C) Whether the crew that currently maintains the conveyor belts knows how to perform the modification to the drive cylinders necessary to switch to plastic polymer belts.
D) Whether other mechanized factories with comparable number of conveyor belts in their systems have switched from rubber/cotton to plastic polymer conveyor belts.
E) Whether the industrial supplier from which the factory traditionally has ordered its rubber/cotton conveyor belts also sells plastic polymer conveyor belts.

_________________
Retired Moderator
Joined: 18 Sep 2014
Posts: 1120
Location: India
Re: A mechanized factory with over 3000 separate conveyor belts wants to  [#permalink]

### Show Tags

18 Sep 2015, 07:39
[quote="Harley1980"]A mechanized factory with over 3000 separate conveyor belts wants to minimize the cost associated with maintenance, repair, and replacement of these belts. The conveyer belts currently are composed vulcanized rubber around a cotton web base, but the factory owners are investigating new plastic polymer design. For any given size belt, the costs for belts of the two compositions are comparable. Compared to the current rubber/cotton belts, the plastic polymer belts are lighter and easier to move, so operating the conveyor belts made of plastic polymer would consume less electric energy. A change from rubber/cotton belts to plastic polymer belts would require minor modification to some of the drive cylinders of the conveyor belts, but the costs of these changes are negligible.

Which of the following would it be most useful to know in determining whether switching to the plastic polymer conveyor belts would be likely to help minimize the factory's cost related to its conveyor belt system?

A) Whether a typical plastic polymer conveyor belt has an approximate serviceable life as least as long as the typical rubber/cotton belt of the same size and shape.
(If the service life i.e.,how long a belt is in a condition to serve is important. this is minimum thing to know whether it is profitable or no loss at-least to invest in plastic belts.)
B) Whether, in remodeling, the factory plans to increase the total number of conveyor belts in its mechanized system.
(remodeling is a future plan and does not hold now)
C) Whether the crew that currently maintains the conveyor belts knows how to perform the modification to the drive cylinders necessary to switch to plastic polymer belts.
(Whether they knew or not is not a matter of concern, they bring experts for one time installation. This cannot decide costs)
D) Whether other mechanized factories with comparable number of conveyor belts in their systems have switched from rubber/cotton to plastic polymer conveyor belts.
(Others case is not related to this factory OFS)
E) Whether the industrial supplier from which the factory traditionally has ordered its rubber/cotton conveyor belts also sells plastic polymer conveyor belts.
(OFS)
SC Moderator
Joined: 23 Sep 2015
Posts: 1550
Re: A mechanized factory with over 3000 separate conveyor belts wants to  [#permalink]

### Show Tags

04 Aug 2018, 02:40

Official Explanation

It would seem that in many ways, the costs associated with the two belt compositions are comparable, and the plastic polymer belts will help with energy savings in the long term. The question remains: are there any hidden long term costs associated with moving to the plastic polymer belts?

Choice (A) is the credited response. If the plastic polymer belts break down more, or simply don't last as long as the traditional belts, then replacing them will incur additional costs that would offset the savings from reduced energy consumption.

(B) is irrelevant: if the company plans to increase the number of belts, then that will have associated costs with either belt system. It doesn't affect the choice of belt.

(C) is not crucial: if they current crew does not know how to modify the system, perhaps the factory will have to hire specialist to come in on a one-time basis to switch over all the drive cylinders, but that's an isolated expense, like the installation costs, which would be offset by long term savings.

(D) would provide weak support at best: other factories might have made this switch for any number of reasons, so the fact that other factors have made this switch would not necessarily tell us anything about whether this particular factory will save money by doing so.

(E) is irrelevant: if the old merchant doesn't sell the old belts, they'll find a new merchant. Big deal. As long as the prices are comparable (which the prompt specifies), this indicates no big change in long term expenses.
_________________

Thanks!
Do give some kudos.

Simple strategy:
“Once you’ve eliminated the impossible, whatever remains, however improbable, must be the truth.”

GMAT Ninja YouTube! Series 1| GMAT Ninja YouTube! Series 2 | How to Improve GMAT Quant from Q49 to a Perfect Q51

My Notes:
Reading comprehension | Critical Reasoning | Absolute Phrases | Subjunctive Mood

Re: A mechanized factory with over 3000 separate conveyor belts wants to &nbs [#permalink] 04 Aug 2018, 02:40
Display posts from previous: Sort by