DSSSB · Mathematics

A cylindrical vessel of internal diameter 12 cm and height 15 cm is filled with juice. The juice is poured in equal quantities into 10 identical cups, each of which is in the shape of an inverted cone with a hemispherical top. The radii of the upper part and the hemisphere of the inverted cone are equal and their circular faces are in a straight line. If the height of the conical part of each cup is twice the diameter of the base of the hemispherical top, then Find the diameter of the hemispherical portion of each cup.

  1. 5 cm
  2. 6 cm
  3. 4 cm
  4. 8 cm
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