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Two solid metal spheres have masses of 5 kg and 135 kg, respectively. If the radius of the smaller sphere is 4 cm, find the radius of the larger sphere.

Answer :

Answer: 12 cm

Step-by-step explanation:

The masses of the spheres are proportional to their volums, and the cube of the ratio is k^3=135/5=27 ==> k=3

The greater radius is 3*4=12 (cm)

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