cr-hw-10-10

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pradeepkaushal9518: Legendary Member; Posts: 1309; Joined: Wed Mar 17, 2010 11:41 pmFollowed by: 5 members; Thanked: 33 times

by pradeepkaushal9518 » Mon Mar 07, 2011 5:57 am

The average cruise ship sailing from Island X to Island Y arrives with between 500 and 600 gallons of fuel remaining in its tank. Therefore, if a cruise ship embarks from Island X and arrives at Island Y with 300 gallons of fuel remaining in its tank, its fuel use for this trip has been greater than the average for cruise ships.

Which of the following indicates a logical flaw in the argument above?

A
Some cruise ships use less than 500 gallons of fuel in sailing from Island X to Island Y.
B
Some cruise ships arrive at Island Y with over 700 gallons of fuel in their tanks.
C
The amount of fuel in the tanks of cruise ships departing Island X could vary.
D
Fuel is used not only to move cruise ships but also for other necessary functions of these ships.
E
Greater fuel use doesn't necessarily imply inefficient fuel use.

A SMALL TOWN GUY

Source: Beat The GMAT — Critical Reasoning | Mon Mar 07, 2011 5:57 am

AIM GMAT: Legendary Member; Posts: 857; Joined: Wed Aug 25, 2010 1:36 amFollowed by: 15 members; Thanked: 56 times

by AIM GMAT » Mon Mar 07, 2011 6:13 am

IMO C.

The amount with which the ships start the journey may vary hence varying the unused fuel at the end of journey .

Thanks & Regards,
AIM GMAT

mundasingh123: Legendary Member; Posts: 2330; Joined: Fri Jan 15, 2010 5:14 amFollowed by: 26 members; Thanked: 56 times

by mundasingh123 » Mon Mar 07, 2011 6:52 am

C . The argument assumes that all cruise ships leave Island X with the same amount of Fuel

I Seek Explanations Not Answers

GMATMadeEasy: Legendary Member; Posts: 768; Joined: Mon Nov 30, 2009 3:46 amFollowed by: 7 members; Thanked: 21 times

by GMATMadeEasy » Mon Mar 07, 2011 12:34 pm

Conclusion : its fuel use for this trip has been greater than the average for cruise ships.

For C to be true it should have been stated like this:

Passage does NOT consider that the amount of fuel in the tanks of cruise ships departing Island X could vary.

What is the OA ?

Target2009: Legendary Member; Posts: 574; Joined: Sat Oct 31, 2009 1:47 pmFollowed by: 5 members; Location: USA; Thanked: 29 times

by Target2009 » Mon Mar 07, 2011 6:38 pm

+1 to C

Regards
Abhishek
------------------------------
MasterGmat Student

bubbliiiiiiii: Legendary Member; Posts: 979; Joined: Tue Apr 14, 2009 1:38 amFollowed by: 12 members; Location: Hyderabad, India; Thanked: 49 times; GMAT Score:700

by bubbliiiiiiii » Mon Mar 07, 2011 9:41 pm

+1 for C.

Regards,

Pranay

nikhilsrl: Master | Next Rank: 500 Posts; Posts: 109; Joined: Mon Jan 10, 2011 3:05 amFollowed by: 7 members; Thanked: 8 times; GMAT Score:760

by nikhilsrl » Tue Mar 08, 2011 1:52 am

The stimulus says a ship that reached Y from X had 300 gallons left in its tank less than the 500 to 600 gallons left in the tank of an average ship that undertakes the same journey. Here it is assumed that all ships start the journey with the same amount of fuel. So if the ships do not start with the same amount of fuel then the fuel left after the journey may also differ. Hence C.

pradeepkaushal9518: Legendary Member; Posts: 1309; Joined: Wed Mar 17, 2010 11:41 pmFollowed by: 5 members; Thanked: 33 times

by pradeepkaushal9518 » Tue Mar 08, 2011 10:08 am

ya oa is C

A SMALL TOWN GUY

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