The curved surface area of a cylinder is five time the area of its base. Find the ratio of radius and height of the cylinder.
A. 2 : 3
B. 3 : 5
C. 2 : 5
D. 3 : 4
Answer: Option C
Solution (By Examveda Team)
$$\eqalign{ & \frac{{2\pi rh}}{{\pi {r^2}}} = \frac{5}{1} \cr & \frac{{2h}}{r} = \frac{5}{1} \cr & r:h = 2:5 \cr} $$This Question Belongs to Arithmetic Ability >> Mensuration 3D
Related Questions on Mensuration 3D
A. 1.057 cm3
B. 4.224 cm3
C. 1.056 cm3
D. 42.24 cm3
A sphere and a hemisphere have the same volume. The ratio of their curved surface area is:
A. $${2^{\frac{3}{2}}}:1$$
B. $${2^{\frac{2}{3}}}:1$$
C. $${4^{\frac{2}{3}}}:1$$
D. $${2^{\frac{1}{3}}}:1$$
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