Volume of the Cube

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Abdulla: Master | Next Rank: 500 Posts; Posts: 328; Joined: Thu Aug 07, 2008 5:25 pm; Location: Philadelphia; Thanked: 4 times; GMAT Score:550

by Abdulla » Sun Feb 15, 2009 5:14 pm

if the sum of the lengths of the edges of a cube is 60, the volume of the cube is ?

(A) 1000
(B) 422
(C) 216
(D) 150
(E) 125

OA is

E

Abdulla

Source: Beat The GMAT — Problem Solving | Sun Feb 15, 2009 5:14 pm

truplayer256: Master | Next Rank: 500 Posts; Posts: 392; Joined: Thu Jan 15, 2009 12:52 pm; Location: New Jersey; Thanked: 76 times

by truplayer256 » Sun Feb 15, 2009 5:32 pm

There are a total of 12 edges on a cube.
Let s=one edge of a cube
12s=60
s=5
Volume=s^3=5^3=125 E

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