Three cubes with sides in the ratio 3...

Three cubes with sides in the ratio 3 : 4 : 5 are melted to form a single cube whose diagonal is `12sqrt(3)c m` . The sides of the cubes are (a) 3 cm, 4 cm, 5 cm (b) 6 cm, 8 cm, 10 cm (c) 9 cm, 12 cm, 15 cm (d) None of these

A

6 cm, 8 cm, 10 cm

B

3 cm, 4 cm, 5 cm

C

9 cm, 12 cm, 15 cm

D

12 cm, 16 cm, 20 cm

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The correct Answer is:

A

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