The edge of three cubes of metal is 3 dm, 4 dm and 5 dm. They are melted and formed into a single cube. Find the edge of the new cube?	Pick one:
A) 6	B) 8	C) 10	D) 12	E) 14
Explanation:   33 + 43 + 53 = a3 =&gt; a = 6   6)
<result>A</result>
The edge of three cubes of metal is 3 dm, 4 dm and 5 dm. They are melted and formed into a single cube. Find the edge of the new cube?