Question

A cube of metal with length of edge as 8 cm is melted to make smaller cubes of Edge 2 cm, how many such smaller cubes can be made?
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Answer 1

Answer:

Let the number of cubes formed be n

Volume beforex melting = Volume after melting

AxAxA=nxaxaxxa

8x8x8=nx2x2x2

After calculation,

n=64

so Number of cubes formed= 64

Hope this helps!!

Answer 2

Answer:

Big cube side = a

volume = 6a^2

volume = 6×8^2

=384 cm^2

v of small cube = 6×2^2

= 24 cm^2

now,

384/24 = no of cubes

= 16

ans: 16 such cubes can be made

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