The edges of three metal cubes are 1 cm, 3 cm, and 4 cm respectively. A new cube is made by melting these three cubes together. What is the edge of the new cube (in centimeters)?
Choose the most appropriate option
A) 3.9	B) 4.2	C) 4.5	D) 4.8	E) 5.1
The total volume is 1^3+3^3+4^3=92   The edge of the new cube is the cube root of 92 which is about 4.5 cm.   The answer is 4.5.
<result>C</result>
The edges of three metal cubes are 1 cm, 3 cm, and 4 cm respectively. A new cube is made by melting these three cubes together. What is the edge of the new cube (in centimeters)?