# A cubical solid of metal has lenght,breadthand height as 40cm,30cm and 25 cm.If this solid is melted and recasted into solid cubes each of side 5 cm,find the number of cubes formed.

2
by yuktasrivastava

2014-11-23T23:42:05+05:30
Length = 40 cm
Height = 25 cm
Volume of the cuboidal metal solid = lbh
= 40 x 30 x 25
= 30000 cm^3

Volume obtained Cubical box by melting = 6a^3
= 6 x 5 x 5  x 5
= 750 cm^3

Number of cubes obtained = Initial volume / final volume
= 30000/750
Ans:  = 40
Therefore number of cubes = 40.
Hope this helped you. And please confirm with ur teachers or any experts here if any wrong I have done. I think the sum is correct!. :-)
Plss.. mark as the bzt! :-)
volume is a^3.
2014-11-24T16:07:29+05:30

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It is a cuboid with dimension
length = 40 cm