Question : A solid sphere of radius 4 cm is melted and cast into the shape of a solid cone of height 4 cm. The radius of the base of the cone is______.

Option 1: 8 cm

Option 2: 4 cm

Option 3: 6 cm

Option 4: 10 cm

Question : A solid cone of height 42 cm with a diameter of its base of 42 cm is cut out from a wooden solid sphere of radius 24 cm. Find the percentage of wood wasted correct to two places of decimal.

Option 1: 75.56%

Option 2: 56.65%

Option 3: 66.50%

Option 4: 67.50%

Question : A solid metallic sphere of radius 12 cm is melted and recast into a cone having a diameter of the base of 12 cm. What is the height of the cone?

Option 1: 258 cm

Option 2: 192 cm

Option 3: 166 cm

Option 4: 224 cm