Question 47 Answer and Explanation _ACT April 2005 Form 60E Math Section

Question 47 Answer and Explanation _ACT April 2005 Form 60E Math Section

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47. The volume of a sphere is $\frac{4}{3}\pi{r}^{3}$ , where r is the radius of the sphere. The shapes of the planets Uranus and Earth are approximately spheres. The radius of Uranus is about 4 times that of Earth. About how many times the volume of Earth is the volume of Uranus?

A. 81

B. 64

C. 16

D. 12

E. 4

Answer and Explanation

Your Answer is

Correct Answer is B

Explanation