Q. If the volume of a sphere is 1150.67 cm³, then its radius is:
✅ Correct Answer: (C)
7 cm
Explanation: Volume = (4/3)πr³. Using π = 22/7, for r = 7 cm, volume = 4312/3 = 1437.33 cm³. For r = 6 cm, volume = 288π = 905.14 cm³. (This question should not use 1150.67 cm³ as none of the options satisfy it.)
Explanation by: Mahesh Chandra
Volume = (4/3)πr³. Using π = 22/7, for r = 7 cm, volume = 4312/3 = 1437.33 cm³. For r = 6 cm, volume = 288π = 905.14 cm³. (This question should not use 1150.67 cm³ as none of the options satisfy it.)