Question

The edge of three cubes of metal is 3 m, 4 m and 5 m. They are melted and formed into a single cube. Find the edge of the new cube ?
A) 15 m
B) 4 m
C) 6 m
D) 9 m

Answer 1

Answer: 6 m

Step-by-step explanation:

Total volume of 3 cubes = (3^3 + 4^3 + 5^3 ) m3

= (27 + 64 + 125)m3

= 216 m3

Now volume of new cube = 216 m3

So edge of new cube = cube root of 216 m3

= 6 m

Answer 2

heya...

Here is your answer...

The edge of three cubes of metal is 3 m, 4 m and 5 m. They are melted and formed into a single cube. Find the edge of the new cube ?

C) 6 m

It may help you...☺☺