A) 1 : 2 : 3
B) 2 : 1 : 3
C) 2 : 3 : 1
D) 3 : 2 : 1
Correct Answer: A
Solution :
Let the radius of each be R. \[\therefore \]Height of each = R Ratio of their volume \[\,=\frac{1}{3}\pi {{R}^{2}}\times R:\frac{2}{3}\pi {{R}^{3}}:\pi {{R}^{2}}\times R\] \[=\frac{1}{3}\pi {{R}^{3}}:\frac{2}{3}\pi {{R}^{3}}:\pi {{R}^{3}}=1:2:3\]
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