Hello,
Can you please tell me if the values that I am testing are correct to show that 2 is in-sufficient:
A sofa is shipped in a rectangular box shaped package. If the length, width, and
height of the package are l, w, and h, respectively, will the box fit through a
door which is 4 feet wide and 8 feet tall?
(1) l + w + h < 12
(2) l^2 + w^2 + h^2 < 256
OA: A
1) w = 3.5, h = 7.5, l = 1 - Suff.
2) w = 4.1, h = 8.1, l = 4 [spoiler]In-suff.
Hence, A
Thanks a lot,
Sri
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Sofa dimensions
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gmattesttaker2
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Patrick_GMATFix
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My rephrase was: is the smallest side < 4, and the next smallest side < 8? That's what is required to fit through the door.
Your plugins are good Sri. They show that (2) is not sufficient.
Your plugins are good Sri. They show that (2) is not sufficient.
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Hi,
Can somebody please explain the answer in detail?
why l+w+h<12 is sufficient?
If I take l=1, w = 4.5 and h=6.5, box will not go through the door.
If I take l=1, w = 3.5 and h=7.5, box will go through.
So, it should be insufficient.
How can the answer be A? Please clarify.
Can somebody please explain the answer in detail?
why l+w+h<12 is sufficient?
If I take l=1, w = 4.5 and h=6.5, box will not go through the door.
If I take l=1, w = 3.5 and h=7.5, box will go through.
So, it should be insufficient.
How can the answer be A? Please clarify.
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theCodeToGMAT
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haiuday, you have neglected the third dimension..haiuday wrote:Hi,
Can somebody please explain the answer in detail?
why l+w+h<12 is sufficient?
If I take l=1, w = 4.5 and h=6.5, box will not go through the door.
If I take l=1, w = 3.5 and h=7.5, box will go through.
So, it should be insufficient.
How can the answer be A? Please clarify.
Dimension of the Door = 4(w) x 8(h)
Dimensions of Case 1 = 1 (L) x 4.5(w) x 6.5 (H)
If we rotate the box to make ..
1 (w) x 6.5 (h) x 4.5 (L)
Then we can make the box pass through..
Hence, SUFFICIENT
{A}
R A H U L
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Hi Sri,
Your solution is correct, but you could have dealt with Fact 2 without using decimals. Here's how:
The prompt tells us that the box has 3 dimensions (L, W and H), but the door has only 2 dimensions (4 feet by 8 feet). To fit through the door, ANY TWO of the dimensions would need to be less than 4 and 8 (and the third dimension wouldn't matter).
Fact 2: L^2 + W^2 + H^2 < 245
If L=1, W=1 and H=1, then the box clearly fits through the door (and the answer is YES)
If L=5, W=5 and L=5, then the box CAN'T fit through the door; none of the dimensions would get past the 4 feet dimension (and the answer is NO)
Fact 2 is INSUFFICIENT
This question serves as a great example for why knowing your "perfect squares" can help on Test Day.
GMAT assassins aren't born, they're made,
Rich
Your solution is correct, but you could have dealt with Fact 2 without using decimals. Here's how:
The prompt tells us that the box has 3 dimensions (L, W and H), but the door has only 2 dimensions (4 feet by 8 feet). To fit through the door, ANY TWO of the dimensions would need to be less than 4 and 8 (and the third dimension wouldn't matter).
Fact 2: L^2 + W^2 + H^2 < 245
If L=1, W=1 and H=1, then the box clearly fits through the door (and the answer is YES)
If L=5, W=5 and L=5, then the box CAN'T fit through the door; none of the dimensions would get past the 4 feet dimension (and the answer is NO)
Fact 2 is INSUFFICIENT
This question serves as a great example for why knowing your "perfect squares" can help on Test Day.
GMAT assassins aren't born, they're made,
Rich
