Subject: General Aptitude · Chapter: Volume and Surface Area · Exam: · Marks: · Difficulty:
A spherical ball of given radius x cm is melted and made into a right circular cylinder. What is the height of the cylinder? I. The volume of the cylinder is equal to the volume of the ball. II. The area of the base of the cylinder is given.
Answer
SELF-PRACTICE — the source book printed no answer.
Nothing is invented here, so this question has no answer on record.
Explanation
Clearly, I is not needed, since it is evident from the given question. From II, we get radius of the base of the cylinder. Now, $\frac{4}{3} \pi x^{3}=\pi r^{2} h$ in which $x$ and $r$ are known.
Explanation as extracted from the printed page; notation may be imperfect.