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Multiple choice

A cylindrical solid with base radius $5$ cm and height $8$ cm is melted down to form $12$ identical cones with base radii $4$ cm. Calculate the height of each cone.

  1. $\dfrac{25}{24}cm$
  2. $\dfrac{5}{24}cm$
  3. $\dfrac{55}{24}cm$
  4. None of these

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