Three cubes whose edges are 3 cm, 4 cm and 5 cm respectively are melted without any loss of metal into a single cube. The edge of new cube is
A. 6 cm
B. 12 cm
C. 9 cm
D. 10 cm
Answer:A
Three cubes whose edges are 3 cm, 4 cm and 5 cm respectively are melted without any loss of metal into a single cube. The edge of new cube is
A. 6 cm B. 12 cm C. 9 cm D. 10 cm