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Three cubes of metal whose edges are in the ratio 3:4:5 are melted down into a single cube whose diagonal is `12sqrt(3)\ c m` . Find the edges of three cubes.

A

6 cm, 8 cm, 10 cm

B

3 cm, 4 cm, 5 cm

C

9 cm, 12 cm, 15 cm

D

None of these

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A
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