Three cubes of metal whose edges are $6 c m, 8 c m$ and $10 c m$ respectively are melted and a single cube is formed. What is the length of the edge of the newly formed cube?

10 c m

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12 c m

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16 c m

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None of the above

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Solution

The correct option is C $12 c m$
Vol. of 3 cubes $=$ Vol. of single cube
$\Rightarrow 6^{3} + 8^{3} + 10^{3} = a^{3} \Rightarrow a = 12 c m$

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Three cubes of iron whose edges are 6 cm, 8 cm and 10 cm respectively are melted and formed into a single cube. Find the edge of the new cube formed.

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Three cubes of metal whose edges are 6 cm, 8 cm and 10 cm respectively are melted to form a single cube. The edge of the new cube is
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Q. Tick (✓) the correct answer:
Three cubes of iron whose edges are 6 cm, 8 cm and 10 cm respectively are melted and formed into a single cube. The edge of the new cube formed is
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Q. Three solid metal cubes with edges

6 c m, 8 c m

and

10 c m

respectively are melted together and formed into a single cube. Find the volume of new cube.

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Three cubes of metal whose edges are 6 cm,8 cm and 10 cm respectively are melted and a single cube is formed. What is the length of the edge of the newly formed cube?

The correct option is C 12 cmVol. of 3 cubes = Vol. of single cube⇒63+83+103=a3⇒a=12cm

Three cubes of metal whose edges are $6 c m, 8 c m$ and $10 c m$ respectively are melted and a single cube is formed. What is the length of the edge of the newly formed cube?

The correct option is C $12 c m$
Vol. of 3 cubes $=$ Vol. of single cube
$\Rightarrow 6^{3} + 8^{3} + 10^{3} = a^{3} \Rightarrow a = 12 c m$