2021 AMC 12B Problems/Problem 6

Problem

An inverted cone with base radius $12\mathrm{cm}$ and height $18\mathrm{cm}$ is full of water. The water is poured into a tall cylinder whose horizontal base has radius of $24\mathrm{cm}$ . What is the height in centimeters of the water in the cylinder?

$\textbf{(A)} ~1.5 \qquad\textbf{(B)} ~3 \qquad\textbf{(C)} ~4 \qquad\textbf{(D)} ~4.5 \qquad\textbf{(E)} ~6$

Solution

$\boxed{\textbf{(A)} ~1.5}$ Dear MAA, Please stop filling cones with water

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2021 AMC 12B Problems/Problem 6

Problem

Solution