Forum Home > GMAT > Quantitative > Problem Solving (PS)
Events & Promotions
|
|
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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Dec 1310:00 AM EST
-12:00 PM EST
Have you ever wondered how to score a PERFECT 805 on the GMAT? Meet Julia, a banking professional who used the Target Test Prep course to achieve this incredible feat. Julia's story is nothing short of an inspiration.
Dec 1207:30 AM PST
-08:30 AM PST
Join the conversation to learn more about INSEAD vs LBS
Dec 1410:00 AM EST
-12:00 PM EST
Think a 100% GMAT Verbal score is out of your reach? Target Test Prep will make you think again! Our course uses techniques such as topical study and spaced repetition to maximize knowledge retention and make studying simple and fun.
Dec 1411:00 AM IST
-01:00 PM IST
Attend this session to learn how to Deconstruct arguments, Pre-Think Author’s Assumptions, and apply Negation Test.- Dec 15
11:00 AM IST
-01:00 PM IST
Attend this free GMAT Algebra Webinar and learn how to master the most challenging Inequalities and Absolute Value problems with ease. - Dec 16
08:00 AM PST
-11:59 PM PST
GMAT Club 12 Days of Christmas is a 4th Annual GMAT Club Winter Competition based on solving questions. This is the Winter GMAT competition on GMAT Club with an amazing opportunity to win over $40,000 worth of prizes! - Dec 17
09:00 AM PST
-10:00 AM PST
Join Manhattan Prep instructor Whitney Garner for a fun—and thorough—review of logic-based (non-math) problems, with a particular emphasis on Data Sufficiency and Two-Parts. - Dec 18
10:00 AM PST
-11:00 AM PST
Here is the essential guide to securing scholarships as an MBA student! In this video, we explore the various types of scholarships available, including need-based and merit-based options.
nightblade354
Current Student
Joined: 31 Jul 2017
Last visit: 12 Dec 2024
Posts: 1,751
Own Kudos:
Given Kudos: 3,185
Status:He came. He saw. He conquered. -- Going to Business School -- Corruptus in Extremis
Location: United States (MA)
Concentration: Finance, Economics
Schools: Darden '25 (M)
Expert reply
08 Sep 2019, 14:35
Kudos
Bookmarks
D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
81% (01:55) correct
19%
(02:02)
wrong
based on 192
sessions
History
Date
Time
Result
Not Attempted Yet
Geothermal power plants produce power using heat from underground reservoirs of hot water or steam heated by the surrounding rock. In the limited areas of the world where such underground hot water and steam can currently be reached by drilling, geothermal power plants produce power more economically than conventional, fossil fuel power plants. However, advocates contend tat in the near future economical power from geothermal power plants will be available in most areas.
Which one of the following, if true, most helps to justify the advocates' contention?
(A) Conventional power plants, unlike geothermal power plants, release large amounts of pollutants into the air
(B) A typical geothermal power plant produces at least as much energy as a typical conventional power plant
(C) The high start-up costs of geothermal power plants discourages their construction even in locations where they are more economical than conventional power plants in the long run
(D) Advanced drilling technology is being developed that will soon make it both feasible and economical to drill wells many timers deeper than it is currently possible to drill
(E) Recent research has to discoveries that could significantly lower production costs for nearly all types of power plants
Which one of the following, if true, most helps to justify the advocates' contention?
(A) Conventional power plants, unlike geothermal power plants, release large amounts of pollutants into the air
(B) A typical geothermal power plant produces at least as much energy as a typical conventional power plant
(C) The high start-up costs of geothermal power plants discourages their construction even in locations where they are more economical than conventional power plants in the long run
(D) Advanced drilling technology is being developed that will soon make it both feasible and economical to drill wells many timers deeper than it is currently possible to drill
(E) Recent research has to discoveries that could significantly lower production costs for nearly all types of power plants
mykrasovski
Joined: 17 Aug 2018
Last visit: 17 Apr 2022
Posts: 346
Own Kudos:
Given Kudos: 254
Location: United States
Schools: Tuck '22 (M) Kellogg '22 (D)
WE:General Management (Other)
12 Sep 2019, 20:15
Kudos
Bookmarks
The advocates content that economical geothermal power will be soon available in most areas. The question asks to support that contention, i.e. we need to strengthen the conclusion of the argument.
(A) Conventional power plants, unlike geothermal power plants, release large amounts of pollutants into the air
- Okay. But even if that is the case, this statement neither strengthens nor weakens the conclusion. Incorrect.
(B) A typical geothermal power plant produces at least as much energy as a typical conventional power plant
- Hm, maybe one Geothermal power plant can produce 10x the amount of power compared to the output of the conventional power plant. But maybe just 1.1x more... Let's keep this answer choice until we find a better one. Maybe the answer?
(C) The high start-up costs of geothermal power plants discourages their construction even in locations where they are more economical than conventional power plants in the long run
- Incorrect. This answer choice weakens the argument big time. If the statement C is true, then the geothermal power won't be available in most places soon.
(D) Advanced drilling technology is being developed that will soon make it both feasible and economical to drill wells many timers deeper than it is currently possible to drill
- Alright, advanced drilling will make it both feasible and economical to develop plants that can extract geothermal power from very deep locations. This essentially means that geothermal power will be more affordable and accessible soon. Much better option than B. Correct!
(E) Recent research has to discoveries that could significantly lower production costs for nearly all types of power plants
- Hm... Power production costs for nearly all types of power plants can go down... this means that conventional power plants will become cheaper to operate, so the power that they produce will be cheaper than that nowadays. Why would anyone want any alternative power sources? Not a very good choice.
(A) Conventional power plants, unlike geothermal power plants, release large amounts of pollutants into the air
- Okay. But even if that is the case, this statement neither strengthens nor weakens the conclusion. Incorrect.
(B) A typical geothermal power plant produces at least as much energy as a typical conventional power plant
- Hm, maybe one Geothermal power plant can produce 10x the amount of power compared to the output of the conventional power plant. But maybe just 1.1x more... Let's keep this answer choice until we find a better one. Maybe the answer?
(C) The high start-up costs of geothermal power plants discourages their construction even in locations where they are more economical than conventional power plants in the long run
- Incorrect. This answer choice weakens the argument big time. If the statement C is true, then the geothermal power won't be available in most places soon.
(D) Advanced drilling technology is being developed that will soon make it both feasible and economical to drill wells many timers deeper than it is currently possible to drill
- Alright, advanced drilling will make it both feasible and economical to develop plants that can extract geothermal power from very deep locations. This essentially means that geothermal power will be more affordable and accessible soon. Much better option than B. Correct!
(E) Recent research has to discoveries that could significantly lower production costs for nearly all types of power plants
- Hm... Power production costs for nearly all types of power plants can go down... this means that conventional power plants will become cheaper to operate, so the power that they produce will be cheaper than that nowadays. Why would anyone want any alternative power sources? Not a very good choice.
rck1099
Joined: 12 Jul 2018
Last visit: 23 Nov 2020
Posts: 7
Own Kudos:
Given Kudos: 5
Location: United States (PA)
Concentration: Strategy, Technology
Schools: Tepper (A) Katz '22 (A$)
GMAT 1: 660 Q46 V36
GMAT 2: 690 Q49 V35
GPA: 3.05
Products:
13 Sep 2019, 08:04
Kudos
Bookmarks
I like D
(A) Conventional power plants, unlike geothermal power plants, release large amounts of pollutants into the air
Irrelevant to the fact that advocates think geothermal energy will become available in more areas
(B) A typical geothermal power plant produces at least as much energy as a typical conventional power plant
Nothing to do with it becoming more available
(C) The high start-up costs of geothermal power plants discourages their construction even in locations where they are more economical than conventional power plants in the long run
This would have a negative affect in the power plants becomeing more widespread
(D) Advanced drilling technology is being developed that will soon make it both feasible and economical to drill wells many timers deeper than it is currently possible to drill
Better drilling tech = more access = more availability
(E) Recent research has to discoveries that could significantly lower production costs for nearly all types of power plants
Irrelevant
(A) Conventional power plants, unlike geothermal power plants, release large amounts of pollutants into the air
Irrelevant to the fact that advocates think geothermal energy will become available in more areas
(B) A typical geothermal power plant produces at least as much energy as a typical conventional power plant
Nothing to do with it becoming more available
(C) The high start-up costs of geothermal power plants discourages their construction even in locations where they are more economical than conventional power plants in the long run
This would have a negative affect in the power plants becomeing more widespread
(D) Advanced drilling technology is being developed that will soon make it both feasible and economical to drill wells many timers deeper than it is currently possible to drill
Better drilling tech = more access = more availability
(E) Recent research has to discoveries that could significantly lower production costs for nearly all types of power plants
Irrelevant
