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Q.

Two cubes each of volume 64cm3 are joined end to end, then the surface area of the resulting cubiod is

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a

136 cm2

b

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c

128 cm2

d

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answer is C.

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Detailed Solution

Volume of each cube Question Image

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Side of each cube Question Image

After joined end to cuboid will be formed

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Surface area of resulting cuboid Question Image

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