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# There is enough water on a lifeboat to feed 12 occupants for 16 days.

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Senior Manager
Joined: 19 Apr 2016
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There is enough water on a lifeboat to feed 12 occupants for 16 days.  [#permalink]

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10 Mar 2017, 22:36
1
00:00

Difficulty:

55% (hard)

Question Stats:

63% (01:32) correct 38% (00:38) wrong based on 8 sessions

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There is enough water on a lifeboat to feed 12 occupants for 16 days. Four days into the voyage there is an argument and two of the occupants are thrown overboard. How many extra days worth of water do the remaining occupants gain ?

A 2.4
B 1.2
C 2.0
D 1.75
E 4.0

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Intern
Joined: 22 Dec 2013
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Location: United States
Schools: Wharton '20
There is enough water on a lifeboat to feed 12 occupants for 16 days.  [#permalink]

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10 Mar 2017, 23:37
1
0akshay0 wrote:
There is enough water on a lifeboat to feed 12 occupants for 16 days. Four days into the voyage there is an argument and two of the occupants are thrown overboard. How many extra days worth of water do the remaining occupants gain ?

A 2.4
B 1.2
C 2.0
D 1.75
E 4.0

Lets assume each person need 1 liter water, so for 12 people water needed is 12 liters per day.
There is 16d days water so total water available is 12*16
After 4 days remaining water is 12*12
Now 2 people are gone, so remaining 10 people have 144 liters of water, which will last for 144/10= 14.4 days, additional days people gain is 14.4-12= 2.4

Kudos if you like
Math Expert
Joined: 02 Sep 2009
Posts: 48074
Re: There is enough water on a lifeboat to feed 12 occupants for 16 days.  [#permalink]

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11 Mar 2017, 03:59
0akshay0 wrote:
There is enough water on a lifeboat to feed 12 occupants for 16 days. Four days into the voyage there is an argument and two of the occupants are thrown overboard. How many extra days worth of water do the remaining occupants gain ?

A 2.4
B 1.2
C 2.0
D 1.75
E 4.0

ONLY Questions from Reliable GMAT Sources are Allowed on the Forum. The question moved to the archive.

--== Message from GMAT Club Team ==--

This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

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Re: There is enough water on a lifeboat to feed 12 occupants for 16 days. &nbs [#permalink] 11 Mar 2017, 03:59
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