A) 2 cm
B) 3 cm
C) 4 cm
D) 6 cm
Correct Answer: D
Solution :
Let the radius of new ball = R cm \[\therefore \] \[\frac{4}{3}\pi {{R}^{3}}=\frac{4}{3}\pi ({{3}^{3}}+{{4}^{3}}+{{5}^{3}})\] \[{{R}^{3}}=27+64+125=215\] \[\Rightarrow \] \[R=\sqrt[3]{6\times 6\times 6}=6\,\,cm\]You need to login to perform this action.
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