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Bunuel
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lesner19
Be aware - the question ask volume in cubic cm

Given - surface area =300
6*a^2=300
Side = 5\sqrt {2}\ INCHES

Volume =a^3* (2.54)^3 cubic cm
( 1 inch =2.54 cm)

No need to calculate

Imo E

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Hi Bunuel,

As rightly pointed out by lesner19 the volume should be in cubic inch..Please correct me if i am wrong
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Luckisnoexcuse
lesner19
Be aware - the question ask volume in cubic cm

Given - surface area =300
6*a^2=300
Side = 5\sqrt {2}\ INCHES

Volume =a^3* (2.54)^3 cubic cm
( 1 inch =2.54 cm)

No need to calculate

Imo E

Sent from my ONEPLUS A3003 using GMAT Club Forum mobile app
Hi Bunuel,

As rightly pointed out by lesner19 the volume should be in cubic inch..Please correct me if i am wrong
_______________
Edited. Thank you.
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Bunuel
The sum of the areas of the faces of a cube is 300 square inches. The volume of this cube, in cubic inches, is

(A) 125√2
(B) 250√2
(C) 300√2
(D) 2,500
(E) 125,000

Since there are 6 faces of a cube, if we let the side of the cube = n, we have:

6n^2 = 300

n^2 = 50

n = √50

Since the volume of the cube is n^3, we have:

volume = √50 x √50 x √50 = 50√50 = 50 x √25 x √2 = 50 x 5 x √2 = 250√2

Answer: B
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