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# The increase in the price of jet fuel is due to a sharp

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Director
Joined: 11 Jun 2007
Posts: 595
The increase in the price of jet fuel is due to a sharp  [#permalink]

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07 Nov 2007, 09:17
00:00

Difficulty:

(N/A)

Question Stats:

53% (00:48) correct 47% (01:35) wrong based on 20 sessions

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The increase in the price of jet fuel is due to a sharp decrease over the past year in the supply of jet fuel available relative to demand. Nonetheless, the amount of jet fuel available for sale is larger today than it was last year.

If the statements above are true, which one of the following conclusions
can be properly drawn on the basis of them?

(A) The demand for jet fuel has increased over the past year.
(B) The fuel efficiency of jet engines has increased over the past year.
(C) The number of jet airline flights has decreased over the past year.
(D) The cost of refining petroleum for jet fuel has increased over the past year.
(E) The supply of petroleum available for jet fuel has decreased over the past year.

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Senior Manager
Joined: 28 Jun 2007
Posts: 307

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07 Nov 2007, 09:26
Straight A.

The amount of jet fuel available for sale has increased. Yet the supply of jet fuel has decreased relative to demand.

Hence, the demand must have increased even more than the supply.
Senior Manager
Joined: 19 Feb 2007
Posts: 316
Re: CR:Price of jet fuel  [#permalink]

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07 Nov 2007, 09:29
eyunni wrote:
The increase in the price of jet fuel is due to a sharp decrease over the past year in the supply of jet fuel available relative to demand. Nonetheless, the amount of jet fuel available for sale is larger today than it was last year.

If the statements above are true, which one of the following conclusions
can be properly drawn on the basis of them?

(A) The demand for jet fuel has increased over the past year.
Correct
(B) The fuel efficiency of jet engines has increased over the past year.
If so, fuel consumption should not be more.
(C) The number of jet airline flights has decreased over the past year.
Weakens........since demand should be less.
(D) The cost of refining petroleum for jet fuel has increased over the past year.
As per the argument, this is not the reason for the hike in price
(E) The supply of petroleum available for jet fuel has decreased over the past year.
No........the argument says -- the amount of jet fuel available for sale is larger today than it was last year.

SVP
Joined: 29 Mar 2007
Posts: 2482
Re: CR:Price of jet fuel  [#permalink]

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07 Nov 2007, 09:38
eyunni wrote:
The increase in the price of jet fuel is due to a sharp decrease over the past year in the supply of jet fuel available relative to demand. Nonetheless, the amount of jet fuel available for sale is larger today than it was last year.

If the statements above are true, which one of the following conclusions
can be properly drawn on the basis of them?

(A) The demand for jet fuel has increased over the past year.
(B) The fuel efficiency of jet engines has increased over the past year.
(C) The number of jet airline flights has decreased over the past year.
(D) The cost of refining petroleum for jet fuel has increased over the past year.
(E) The supply of petroleum available for jet fuel has decreased over the past year.

Def A.

Lets say in the past only 100 barrels of fuel available. And price was 10\$

Now 10000barrels, but b/c lots of more ppl using the fuel price is now
20\$, but more fuel is available for sale.
Director
Joined: 03 Sep 2006
Posts: 835

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07 Nov 2007, 21:17
past year: more demand..less supply..price increased
this year: supply increased than last year.... clearly demand must have increased too!!!

Manager
Joined: 10 Dec 2006
Posts: 90

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07 Nov 2007, 23:03
LM wrote:
past year: more demand..less supply..price increased
this year: supply increased than last year.... clearly demand must have increased too!!!

Clear A, but, a quick thought on answering these kind of questions which ask you to draw conclusions.

The conclusion of an argument can only be drawn from the facts mentioned in the stimulus. B,C,D,E can be straightaway eliminated using this rule. The stimulus doesn't talk about fuel efficiency, jet airline flights or petroleum.
Director
Joined: 11 Jun 2007
Posts: 595

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08 Nov 2007, 07:21
rakesh22 wrote:
LM wrote:
past year: more demand..less supply..price increased
this year: supply increased than last year.... clearly demand must have increased too!!!

Clear A, but, a quick thought on answering these kind of questions which ask you to draw conclusions.

The conclusion of an argument can only be drawn from the facts mentioned in the stimulus. B,C,D,E can be straightaway eliminated using this rule. The stimulus doesn't talk about fuel efficiency, jet airline flights or petroleum.

Yes, I second you. I think if the question were to ask about inference, we might probably have to look at the other options.
Director
Joined: 21 Dec 2010
Posts: 532
Re: CR:Price of jet fuel  [#permalink]

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07 May 2011, 13:57
A in 41 seconds . i think i am getting faster
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Manager
Joined: 16 Mar 2011
Posts: 170
Re: CR:Price of jet fuel  [#permalink]

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07 May 2011, 14:01
A is the only one that can follow the info
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Re: CR:Price of jet fuel  [#permalink]

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19 May 2011, 03:49
A fits.
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Re: CR:Price of jet fuel  [#permalink]

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19 May 2011, 04:53
eyunni wrote:
The increase in the price of jet fuel is due to a sharp decrease over the past year in the supply of jet fuel available relative to demand. Nonetheless, the amount of jet fuel available for sale is larger today than it was last year.

If the statements above are true, which one of the following conclusions
can be properly drawn on the basis of them?

(A) The demand for jet fuel has increased over the past year.
(B) The fuel efficiency of jet engines has increased over the past year.
(C) The number of jet airline flights has decreased over the past year.
(D) The cost of refining petroleum for jet fuel has increased over the past year.
(E) The supply of petroleum available for jet fuel has decreased over the past year.

Statement 1:
The increase in the price of jet fuel is due to a sharp decrease over the past year in the supply of jet fuel available relative to demand.
Inferences:
1. Either the demand increased or fuel supply decreased.
e.g.
100 Barrels; 100 People Last Year; S/D=1/1

Case I:
More demand: 200 Barrels; 1000 People; S/D=1/5
Or
Case II:
Short Supply: 20 Barrel: 100 People. S/D=1/5

Statement 2:
Nonetheless, the amount of jet fuel available for sale is larger today than it was last year.
Case II is canceled out.
Case I prevails.

Ans: "A"
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Manager
Joined: 04 Apr 2010
Posts: 140
Re: CR:Price of jet fuel  [#permalink]

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19 May 2011, 07:30
A 39 secs

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Re: CR:Price of jet fuel &nbs [#permalink] 19 May 2011, 07:30
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