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# After replacing his old gas water heater with a new, pilotless, gas

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After replacing his old gas water heater with a new, pilotless, gas  [#permalink]

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18 Sep 2017, 20:05
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5% (low)

Question Stats:

90% (01:19) correct 10% (01:23) wrong based on 385 sessions

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After replacing his old gas water heater with a new, pilotless, gas water heater that is rated as highly efficient, Jimmy’s gas bills increased.

Each of the following, if true, contributes to an explanation of the increase mentioned above EXCEPT:

(A) The new water heater uses a smaller percentage of the gas used by Jimmy’s household than did the old one.

(B) Shortly after the new water heater was installed, Jimmy’s uncle came to live with him, doubling the size of the household.

(C) After having done his laundry at a laundromat, Jimmy bought and started using a gas dryer when he replaced his water heater.

(D) Jimmy’s utility company raised the rates for gas consumption following installation of the new water heater.

(E) Unusually cold weather following installation of the new water heater resulted in heavy gas usage.

Source: LSAT

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Re: After replacing his old gas water heater with a new, pilotless, gas  [#permalink]

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19 Sep 2017, 10:52
broall wrote:
After replacing his old gas water heater with a new, pilotless, gas water heater that is rated as highly efficient, Jimmy’s gas bills increased.

Each of the following, if true, contributes to an explanation of the increase mentioned above EXCEPT:

(A) The new water heater uses a smaller percentage of the gas used by Jimmy’s household than did the old one.

(B) Shortly after the new water heater was installed, Jimmy’s uncle came to live with him, doubling the size of the household.

(C) After having done his laundry at a laundromat, Jimmy bought and started using a gas dryer when he replaced his water heater.

(D) Jimmy’s utility company raised the rates for gas consumption following installation of the new water heater.

(E) Unusually cold weather following installation of the new water heater resulted in heavy gas usage.

Source: LSAT

B-Gives a reason for the bill inc
C-gives a reason
D-rate inc ..it also gives a reason
E-more usage of gas -more bill
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Re: After replacing his old gas water heater with a new, pilotless, gas  [#permalink]

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14 Dec 2017, 02:06
broall wrote:
After replacing his old gas water heater with a new, pilotless, gas water heater that is rated as highly efficient, Jimmy’s gas bills increased.

Each of the following, if true, contributes to an explanation of the increase mentioned above EXCEPT:

(A) The new water heater uses a smaller percentage of the gas used by Jimmy’s household than did the old one.

(B) Shortly after the new water heater was installed, Jimmy’s uncle came to live with him, doubling the size of the household.

(C) After having done his laundry at a laundromat, Jimmy bought and started using a gas dryer when he replaced his water heater.

(D) Jimmy’s utility company raised the rates for gas consumption following installation of the new water heater.

(E) Unusually cold weather following installation of the new water heater resulted in heavy gas usage.

Source: LSAT

I am dreaming most of the CR GMAT questions look like this question.

Thank you broall !
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Re: After replacing his old gas water heater with a new, pilotless, gas  [#permalink]

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14 Dec 2017, 03:34
1
septwibowo wrote:
broall wrote:
After replacing his old gas water heater with a new, pilotless, gas water heater that is rated as highly efficient, Jimmy’s gas bills increased.

Each of the following, if true, contributes to an explanation of the increase mentioned above EXCEPT:

(A) The new water heater uses a smaller percentage of the gas used by Jimmy’s household than did the old one.

(B) Shortly after the new water heater was installed, Jimmy’s uncle came to live with him, doubling the size of the household.

(C) After having done his laundry at a laundromat, Jimmy bought and started using a gas dryer when he replaced his water heater.

(D) Jimmy’s utility company raised the rates for gas consumption following installation of the new water heater.

(E) Unusually cold weather following installation of the new water heater resulted in heavy gas usage.

Source: LSAT

I am dreaming most of the CR GMAT questions look like this question.

Thank you broall !

LOL, you could see most of CR questions that like this one in GMAT exam, but I'm afraid that the score would be below 600
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Re: After replacing his old gas water heater with a new, pilotless, gas  [#permalink]

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25 Jan 2018, 12:59
broall wrote:
After replacing his old gas water heater with a new, pilotless, gas water heater that is rated as highly efficient, Jimmy’s gas bills increased.

Each of the following, if true, contributes to an explanation of the increase mentioned above EXCEPT:

(A) The new water heater uses a smaller percentage of the gas used by Jimmy’s household than did the old one.

(B) Shortly after the new water heater was installed, Jimmy’s uncle came to live with him, doubling the size of the household.

(C) After having done his laundry at a laundromat, Jimmy bought and started using a gas dryer when he replaced his water heater.

(D) Jimmy’s utility company raised the rates for gas consumption following installation of the new water heater.

(E) Unusually cold weather following installation of the new water heater resulted in heavy gas usage.

Source: LSAT

This is the nth time I forgot to read The EXCEPT!! Such a dumb fellow I am!
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Re: After replacing his old gas water heater with a new, pilotless, gas  [#permalink]

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26 Jan 2018, 06:45
Certainly (A) , it doesn't talk about the potential cause of increase in gas bills..
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Re: After replacing his old gas water heater with a new, pilotless, gas  [#permalink]

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07 Jul 2018, 04:53
Hi Expert,

Why not "C"?

A tells that new water heater uses smaller %age of gas used by Jimmy's household than did the old one.

It doesn't confirm a reason why Jimmy's gas bill increased?
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Re: After replacing his old gas water heater with a new, pilotless, gas  [#permalink]

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20 Jul 2018, 11:54
honneeey wrote:
Hi Expert,

Why not "C"?

A tells that new water heater uses smaller %age of gas used by Jimmy's household than did the old one.

It doesn't confirm a reason why Jimmy's gas bill increased?

So we're looking for possible causes of an increase in Jimmy's gas bill. The passage tells us that Jimmy's new water heater is rated as highly efficient. So we would expect the new water heater to be more efficient than the old one. In other words, if both the old heater and the new heater were used to create the same quantity of heat, the new heater should use less gas in doing so.

So, as long as the energy requirements of Jimmy's household remain constant, we would expect the gas bill to decrease.

However, we know that the gas bill increased. So we're looking for factors that could have caused this increase, such as:

• Anything that causes more gas to be used
• Anything that raises the cost of using gas

Now, let's take a closer look at (C):

Quote:
(C) After having done his laundry at a laundromat, Jimmy bought and started using a gas dryer when he replaced his water heater.

This choice introduces a gas dryer to the household, which causes more gas to be used. We know the dryer is an entirely new cause of gas usage, because this choice also tells us that Jimmy was previously doing his laundry at the laundromat. That's why (C) contributes to an explanation of the increase, and that's why we eliminate the choice.

I hope that helps!
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Re: After replacing his old gas water heater with a new, pilotless, gas   [#permalink] 20 Jul 2018, 11:54
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