A) 214 m
B) 242 m
C) 243m
D) 244m
Correct Answer: C
Solution :
Let the length of the wire be\[l\]cm. volume of sphere = volume of wire \[\frac{4}{3}\pi {{r}^{3}}=\pi {{r}^{2}}h\] But length of the wire be\[l\] \[\frac{4}{3}\times \pi \times 9\times 9\times 9=\pi \times 0.2\times 0.2\times l\] \[l=\frac{4}{3}\times 9\times 9\times 9\times \frac{1}{0.2\times 0.2}\] \[=24300\,cm\] \[=243m\]
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