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What is the surface area of a certain box? (1) The volume of the box

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What is the surface area of a certain box? (1) The volume of the box  [#permalink]

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New post 09 Sep 2018, 08:00
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

86% (00:50) correct 14% (00:47) wrong based on 27 sessions

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Re: What is the surface area of a certain box? (1) The volume of the box  [#permalink]

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New post 15 Sep 2018, 18:26
Bunuel wrote:
What is the surface area of a certain box?

(1) The volume of the box is 20.
(2) The base of the box is a square.


Formulas:
Surface Area of a Box = 2(L*W) + 2(L*H) + 2(H*W)
Volume of a box = L * W * H

(1) The volume of the box is 20.

20 = L * W * H

No way to know what Length Width or Height are, so we can not determine the SA.

Not Sufficient.


(2) The base of the box is a square.

W = L

No way to know what the Height is. SA can not be determined.

Not Sufficient.


(1) and (2)

20 = L * W * H and W = L

Surface Area of a Box = 2(L*W) + 2(L*H) + 2(H*W)

We still don't know what the measurements are of Length Width or Height, so we can not determine SA.

Not Sufficient.

Answer = E
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Re: What is the surface area of a certain box? (1) The volume of the box   [#permalink] 15 Sep 2018, 18:26
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What is the surface area of a certain box? (1) The volume of the box

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