Question

Core of three cubes of metal are 3cm 5cm and 4cm respectively. By melting all three a new cube is made.find the volume of new cube and the length of the core of this cube

Answer 1

Volume of three cubes=volume of new cube

(4)3+(5)3+(3)3=(side) 3

216=(side) 3

Side=6

#side=6 and volume of new cube is 216