Question

THREE CUBES OF SIDE S 3CM ,4CM , 5CM RESPECTIVELY ARE MELTED TO FORM A NEW CUBE . WHAT IS SIDE OF NEW CUBE​

Answer 1

Volume of the three cubes --

1st - 3cm= 3^3= 27 cubic cm

2nd - 4cm= 4^3= 64 cubic cm

3rd - 5cm= 5^3= 125 cubic cm

Sum of all volumes= 27+64+125= 216 cubic cm

Side of new cube= cube root of 216

. = 6 cm