http://www.manhattangmat.com

Question

https://www.manhattangmat.com

cbrf3 · Answer

C..................??

Geethu · Answer

Even I feel the answer should be C.

We need information about all the containers.

Makky07 · Answer

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.

cbrf3 · Answer

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:

anandnk · Answer

I get C as the answer.

Virtual · Answer

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

. 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

anandnk · Answer

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.

Virtual · Answer

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

trishuls · Answer

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.

mantha · Answer

Assume another condition : The volume of each is greater than 4?

Will the answer change?

Virtual · Answer

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.

mantha · Answer

Virtual,

That is corret. I tried hard to see if there is more to this question than a simple C.

http://www.manhattangmat.com

Prep Toolkit

Top 5 GMAT Debrief Videos

615 to 715 in 15 Days (Ria's Strategies)

More than Quant/Verbal Abilities: Speed vs. Accuracy

745 with Only Self-Prep and GMAT Club

From 555 to 765: 210-point Improvement

Perfect 805 Score Debrief by Julia

My Rewards