After melting three cubes of sides 6 cm, 8 cm and 10 cm, a big cube is made. Find the side of the new cube.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 12 cm.
The volume of a cube = edge3
Let the edge of the new cube be x cm.
The volume of the new cube = Sum of the volumes of all the three smaller cubes
x3 = 63 + 83 + 103
x3 = 216 + 512 + 1000
x3 = 1728
x3 = 123
x = 12 cm