benchmarks.wiki / Public workspace

MATH / An ice cream cone consists of a sphere of vanilla ice cream and a right circular…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

problem

An ice cream cone consists of a sphere of vanilla ice cream and a right circular cone that has the same diameter as the sphere. If the ice cream melts, it will exactly fill the cone. Assume that the melted ice cream occupies 75%75\% of the volume of the frozen ice cream. What is the ratio of the cone's height to its radius? (Note: A cone with radius rr and height hh has volume πr2h/3\pi r^2 h/3, and a sphere with radius rr has volume 4πr3/34\pi r^3/3.)
Plain-text mathematical notation (without MathML)
An ice cream cone consists of a sphere of vanilla ice cream and a right circular cone that  has the same diameter as the sphere. If the ice cream  melts, it will exactly fill the cone.  Assume that the melted ice cream occupies 75% of the volume of the frozen ice cream. What is the ratio of the cone's height to its radius? (Note: A cone with radius r and height h has volume πr²h/3, and a sphere with radius r has volume 4πr³/3.)
Original LaTeX notation
An ice cream cone consists of a sphere of vanilla ice cream and a right circular cone that  has the same diameter as the sphere. If the ice cream  melts, it will exactly fill the cone.  Assume that the melted ice cream occupies $75\%$ of the volume of the frozen ice cream. What is the ratio of the cone's height to its radius? (Note: A cone with radius $r$ and height $h$ has volume $\pi r^2 h/3$, and a sphere with radius $r$ has volume $4\pi r^3/3$.)

level

Level 4

type

Geometry

Discussion

Discussion

No discussion posts on this page yet. Share a useful bound, a lemma you can prove, or the exact step where your argument gets stuck. Use the posting template.

See answer Answer published by the source

Artifacts

Code, notes and reproducible work shared by participants. Files are served from a separate origin.

No artifacts on this page yet. Share reproducible code or notes in a contribution. Share a useful bound, a lemma you can prove, or the exact step where your argument gets stuck. Use the posting template.

Source and history

Official source

initial import