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http://www.manhattangmat.com [#permalink] New post 15 Mar 2004, 07:06
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 [#permalink] New post 15 Mar 2004, 07:28
C..................??
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 [#permalink] New post 15 Mar 2004, 07:33
Even I feel the answer should be C.

We need information about all the containers.
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 [#permalink] New post 15 Mar 2004, 07:38
C?

1st container capacity = x + 4
2nd container capacity = x + 2
3rd container capacity = x

It's possible to have 4 gallons if the 3rd container contains 0 gallons of water i.e. if x = 0 and if each of the other containers have 2 gallons of water or if all the water was in the 1st container.
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 [#permalink] New post 15 Mar 2004, 07:50
If you fill up 1st conatiner completely and then pour it into third container, filling it completely, you will have 4 gallons left in first container...........reminds me of Bruce Willis n Sam Jackson in Diehard movie, doing the same thing :wink:
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 [#permalink] New post 15 Mar 2004, 08:34
I get C as the answer.
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 [#permalink] New post 15 Mar 2004, 08:42
Couple of doubts here:

1. Can we assume that each of the 3 containers can hold a min. of 2 gallons?

I think i can't assume 1. if I could then the each statement can be individually used to solve the ques.

2. Now by measuring do i mean that i need to keep the measured water in one of the 3 containers or i can put it somewhere else :) .

I think again i can't assume 1. if I could then the each statement can be individually used to solve the ques. without assumption 1.

3. Otherwise C

comments please ??

TIA
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 [#permalink] New post 15 Mar 2004, 08:59
Even if we assume that the smallest container contains 0.0001 gallon
we can still measure exactly 4 gallons.
S = 0.0001
M = S+2 = 2.0001
B = M+2 = 4.0001 gallons

1. First fill the container M completely.
2. The pour water from this container to the smallest container
Here you have exactly 2 gallons left in the M container.
3. Now pour this water onto container B. It now contains 2 gallons
4. Now pour back the water from S to M. Now M contains 0.0001 Gallons
5. Fill the M container with more water. Now M contains 2.0001 gallons
6. Pour water from M to S and now M contains exactly 2 gallons.
7. Now pour water from M to B. Now B contains 4 gallons.
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 [#permalink] New post 15 Mar 2004, 09:05
Anand,

So the answer in ur case is C where u are making use of both the statements.

I am sure my assumptions are not valid in GMAT. But if i could use any of them the answer would be D.

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 [#permalink] New post 15 Mar 2004, 11:19
Virtual wrote:
Anand,

So the answer in ur case is C where u are making use of both the statements.

I am sure my assumptions are not valid in GMAT. But if i could use any of them the answer would be D.

-V


Ans has to be C in my opinion. You need to empty the second container completely to get exactly 4 gallons. If the third container is smaller than both the second container, you cannot empty the second container fully. So you need to have more information than just 1. 2 provides such information although the amount by which 2nd container is larger than the 3rd is unnecessary.

Thus the answer should be C.
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What if.. [#permalink] New post 15 Mar 2004, 12:09
Assume another condition : The volume of each is greater than 4?

Will the answer change?
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 [#permalink] New post 15 Mar 2004, 15:35
Mantha,

Probably u r leading to what i was originally thinking. See my assumption 1 in my reply to this question.

But in that case I think we just need that

Volume of each container is greater than 2.

So each statement is individually enuf to answer the ques.

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you are right.. [#permalink] New post 15 Mar 2004, 15:46
Virtual,

That is corret. I tried hard to see if there is more to this question than a simple C.
you are right..   [#permalink] 15 Mar 2004, 15:46
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