A) 3
B) 4
C) 5
D) 6
Correct Answer: C
Solution :
Volume of one solid sphere \[=\frac{4}{3}\pi \times {{(3)}^{3}}\] Volume of cylinder \[=\pi {{r}^{2}}h=\pi \times 4\times 45\] Now, Number of spheres x Volume of one sphere = Volume of cylinder \[\Rightarrow \]Number of spheres \[\times \frac{4}{3}\pi {{(3)}^{3}}=\pi \times 4\times 45\] \[\Rightarrow \]Number of spheres \[=\frac{49}{9}=5\]
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