volume ratio - 2

Geometry Level 1

If the largest sphere is carved from a wooden cube measuring 10 units on an edge, what is the ratio of the volume of this sphere to the volume of the cube?

Give your answer as a fraction.

Use $\pi=\frac{22}{7}$ .

\dfrac{9}{21}

\dfrac{10}{21}

\dfrac{11}{21}

\dfrac{12}{21}