A) 21 cm
B) 7 cm
C) 14 cm
D) 28 cm
Correct Answer: A
Solution :
[a] Let radius of the sphere \[=r\,cm\] Then, \[\frac{4}{3}\,\pi {{r}^{3}}=21\times 77\times 24\] \[\Rightarrow \] \[{{r}^{3}}=21\times 77\times 24\times \frac{3}{4}\times \frac{7}{22}\] \[{{r}^{3}}=9261\] \[\Rightarrow \] \[r=21\,cm\] |
You need to login to perform this action.
You will be redirected in
3 sec