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Updated on: 07 Mar 2026, 09:08
Originally posted by MartyMurray on 01 Apr 2025, 11:13.
Last edited by MartyMurray on 07 Mar 2026, 09:08, edited 1 time in total.
Last edited by MartyMurray on 07 Mar 2026, 09:08, edited 1 time in total.
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
65%
(hard)
Question Stats:
56% (01:42) correct
44%
(01:58)
wrong
based on 358
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Because of a technological breakthrough, all gas heating furnaces produced from next year on will be significantly more efficient than those currently in use in Verania. Accordingly, it can be expected that, as older furnaces are replaced with new ones, the amount of gas consumed annually per household in Verania will decrease significantly.
Which of the following, if true of Verania, most weakens the case for the claim made?
(A) In many cases, households use the same furnace for 20 years or more.
(B) Because of environmental concerns, most people would prefer not to use fossil fuels such as gas.
(C) Currently, most households set their thermostats at uncomfortably low temperatures because of the high cost of heating their houses.
(D) An increasing number of households are replacing their gas heating systems with systems that use geothermal energy.
(E) The difference in efficiency between older gas furnaces and ones that use the new technology is unlikely to cause many people to replace their furnaces.
Source: Marty Murray Coaching
Which of the following, if true of Verania, most weakens the case for the claim made?
(A) In many cases, households use the same furnace for 20 years or more.
(B) Because of environmental concerns, most people would prefer not to use fossil fuels such as gas.
(C) Currently, most households set their thermostats at uncomfortably low temperatures because of the high cost of heating their houses.
(D) An increasing number of households are replacing their gas heating systems with systems that use geothermal energy.
(E) The difference in efficiency between older gas furnaces and ones that use the new technology is unlikely to cause many people to replace their furnaces.
Source: Marty Murray Coaching
01 Apr 2025, 15:33
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Because of a technological breakthrough, all gas heating furnaces produced from next year on will be significantly more efficient than those currently in use in Verania. Accordingly, it can be expected that, as older furnaces are replaced with new ones, the amount of gas consumed annually per household in Verania will decrease significantly.
The conclusion of the argument is the following:
it can be expected that, as older furnaces are replaced with new ones, the amount of gas consumed annually per household in Verania will decrease significantly
The support for the conclusion is the following:
all gas heating furnaces produced from next year on will be significantly more efficient than those currently in use in Verania
We see that the reasoning of the argument is basically that, since new furnaces will be more efficient than those currently in use, as the furnaces currently in use are replaced with new ones, the average amount of gas consumed by a household will decrease.
Which of the following, if true of Verania, most weakens the case for the claim made?
This is a Weaken question, and the correct answer will weaken the case for the conclusion. In other words, it will show that, even though new furnaces are more efficient than the ones currently in use, the replacement of older furnaces with new ones may not result in a decrease in the amount of gas used.
(A) In many cases, households use the same furnace for 20 years or more.
This choice is tricky to eliminate because it indicates that furnaces may not be replaced for quite some time. So, it could seem to indicate that the amount of gas used per household won't decrease.
Here's the thing though.
The point of the argument is not that furnaces will be quickly replaced. It's that AS they are replaced, the amount of gas used will decrease.
So, the conclusion could be true regardless of whether furnaces are replaced soon or 20 years in the future. Either way, as they are replaced, the amount of gas used could decrease.
So, this choice has no effect on the strength of the argument.
Eliminate.
(B) Because of environmental concerns, most people would prefer not to use fossil fuels such as gas.
If anything, this choice strengthens, rather than weakens, the argument.
After all, if people would prefer not to use gas, then we have even more reason to believe that the amount of gas used per household will decrease because people will seek to achieve what they prefer, which is reduced use of gas.
Eliminate.
(C) Currently, most households set their thermostats at uncomfortably low temperatures because of the high cost of heating their houses.
This choice is interesting.
If, "currently, most households set their thermostats at uncomfortably low temperatures because of the high cost of heating their houses," then, when people get new, more efficient furnaces, there's a good chance that they'll take advantage of the savings provided by the efficiency and set their thermostats at higher, more comfortable temperatures.
So, replacement of furnaces with new ones may not result in a decrease in gas use because, even though the new furnaces will be more efficient, people may offset that increased efficiency with greater use of the furnaces. After all, with more efficient furnaces, they can be more comfortable while spending the same amount of money on gas.
So, this choice indicates that, even though new furnaces are more efficient, it may not be the case that, as furnaces currently in use are replaced with new ones, gas use will decrease.
Thus, it weakens the case for the conclusion.
Keep.
(D) An increasing number of households are replacing their gas heating systems with systems that use geothermal energy.
Although this choice is not about replacing gas furnaces with new ones, it does provide a reason to believe that the amount of gas used per household will decrease in the future.
So, in a way, this choice strengthens, rather than weakens, the case for the conclusion that, as older furnaces are replaced with new ones, the amount of gas consumed annually per household.
After all, the future is when older furnaces will be replaced. So, any reason to believe that gas use will decrease in the future helps to confirm the conclusion.
Eliminate.
(E) The difference in efficiency between older gas furnaces and ones that use the new technology is unlikely to cause many people to replace their furnaces.
This choice is tricky to eliminate because it could seem to indicate that new furnaces are not much more efficient than the ones currently in use and also that people won't replace their furnaces with new ones.
So, to eliminate this choice, we have to see that, regardless of what this choice says, the passage states as fact that "all gas heating furnaces produced from next year on will be significantly more efficient than those currently in use."
So, even if the difference in efficiency is "unlikely to cause many people to replace their furnaces," according to the passage, it is significant. Thus, as people replace their furnaces, they may use less gas.
Furthermore, while this choice may indicate that furnaces may not be replaced quickly, the point of the argument is not that furnaces will be quickly replaced. It's that, AS they are replaced, soon or far in the future, the amount of gas used will decrease.
So, this choice has no effect on the strength of the argument.
Eliminate.
Correct answer: C
The conclusion of the argument is the following:
it can be expected that, as older furnaces are replaced with new ones, the amount of gas consumed annually per household in Verania will decrease significantly
The support for the conclusion is the following:
all gas heating furnaces produced from next year on will be significantly more efficient than those currently in use in Verania
We see that the reasoning of the argument is basically that, since new furnaces will be more efficient than those currently in use, as the furnaces currently in use are replaced with new ones, the average amount of gas consumed by a household will decrease.
Which of the following, if true of Verania, most weakens the case for the claim made?
This is a Weaken question, and the correct answer will weaken the case for the conclusion. In other words, it will show that, even though new furnaces are more efficient than the ones currently in use, the replacement of older furnaces with new ones may not result in a decrease in the amount of gas used.
(A) In many cases, households use the same furnace for 20 years or more.
This choice is tricky to eliminate because it indicates that furnaces may not be replaced for quite some time. So, it could seem to indicate that the amount of gas used per household won't decrease.
Here's the thing though.
The point of the argument is not that furnaces will be quickly replaced. It's that AS they are replaced, the amount of gas used will decrease.
So, the conclusion could be true regardless of whether furnaces are replaced soon or 20 years in the future. Either way, as they are replaced, the amount of gas used could decrease.
So, this choice has no effect on the strength of the argument.
Eliminate.
(B) Because of environmental concerns, most people would prefer not to use fossil fuels such as gas.
If anything, this choice strengthens, rather than weakens, the argument.
After all, if people would prefer not to use gas, then we have even more reason to believe that the amount of gas used per household will decrease because people will seek to achieve what they prefer, which is reduced use of gas.
Eliminate.
(C) Currently, most households set their thermostats at uncomfortably low temperatures because of the high cost of heating their houses.
This choice is interesting.
If, "currently, most households set their thermostats at uncomfortably low temperatures because of the high cost of heating their houses," then, when people get new, more efficient furnaces, there's a good chance that they'll take advantage of the savings provided by the efficiency and set their thermostats at higher, more comfortable temperatures.
So, replacement of furnaces with new ones may not result in a decrease in gas use because, even though the new furnaces will be more efficient, people may offset that increased efficiency with greater use of the furnaces. After all, with more efficient furnaces, they can be more comfortable while spending the same amount of money on gas.
So, this choice indicates that, even though new furnaces are more efficient, it may not be the case that, as furnaces currently in use are replaced with new ones, gas use will decrease.
Thus, it weakens the case for the conclusion.
Keep.
(D) An increasing number of households are replacing their gas heating systems with systems that use geothermal energy.
Although this choice is not about replacing gas furnaces with new ones, it does provide a reason to believe that the amount of gas used per household will decrease in the future.
So, in a way, this choice strengthens, rather than weakens, the case for the conclusion that, as older furnaces are replaced with new ones, the amount of gas consumed annually per household.
After all, the future is when older furnaces will be replaced. So, any reason to believe that gas use will decrease in the future helps to confirm the conclusion.
Eliminate.
(E) The difference in efficiency between older gas furnaces and ones that use the new technology is unlikely to cause many people to replace their furnaces.
This choice is tricky to eliminate because it could seem to indicate that new furnaces are not much more efficient than the ones currently in use and also that people won't replace their furnaces with new ones.
So, to eliminate this choice, we have to see that, regardless of what this choice says, the passage states as fact that "all gas heating furnaces produced from next year on will be significantly more efficient than those currently in use."
So, even if the difference in efficiency is "unlikely to cause many people to replace their furnaces," according to the passage, it is significant. Thus, as people replace their furnaces, they may use less gas.
Furthermore, while this choice may indicate that furnaces may not be replaced quickly, the point of the argument is not that furnaces will be quickly replaced. It's that, AS they are replaced, soon or far in the future, the amount of gas used will decrease.
So, this choice has no effect on the strength of the argument.
Eliminate.
Correct answer: C
General Discussion
04 Apr 2025, 01:25
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I was confused between the two options too but I'm gonna be honest despite the tutors explanation it's just not convincing c is a this might maybe lead to more usage it's possible but e explicitly says nah they w9nt adopt it because they don't feel like it's worth it
The furthermore it might not be replaced early thing works for another option but it has no purpose here imo.
If the questions are going to be this weird I'm not sure I have anything but luck that could help me.
This significantly weakens the whole purpose of the new technology.
The person infm the article believes something to be true because of x. But the option says these people don't put weight on x and hence this plan d0esnt appeal to them this option is too logical to discount someone help me put here.
The furthermore it might not be replaced early thing works for another option but it has no purpose here imo.
If the questions are going to be this weird I'm not sure I have anything but luck that could help me.
This significantly weakens the whole purpose of the new technology.
The person infm the article believes something to be true because of x. But the option says these people don't put weight on x and hence this plan d0esnt appeal to them this option is too logical to discount someone help me put here.
