2021 · Q36
A conical vessel whose internal radius is 5 cm and height 24 cm is full of water. The water is emptied into a cylindrical vessel with internal radius 10 cm. What is the height to which the water rises?
Elementary MathematicsMensuration
- A1 cm
- B2 cm
- C3 cm
- D4 cm
Explanation
The water volume is (1/3)π·5²·24 = 200π cm³. Poured into the cylinder of radius 10 cm: π·10²·h = 200π gives h = 2 cm. Hence option B.