Question: three cubes of metal whose edges are 5 , 12 and 15 cm respectively , are melted and one new cube is made . find the edge of the new cube ?
A) 28
B) 77
C) 17.3
D) 18
E) 99
Correct answer: C
Grade: 8 | Topic: Geometry | Difficulty: Medium | Standard: 8.G.C.9