The radius of two similar right circular cylinders are 4 cm and 6cm. The ratio of their altitudes is

4 : 3

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2 : 9

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4 : 9

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2 : 3

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Solution

The correct option is D
2 : 3

In similar solids, all corresponding linear dimensions are in the same ratio. Since the ratio of the radii is 2 : 3, the ratio of the altitude is 2 : 3.

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Question 24

The ratio of radii of two cylinders is 1 : 2 and heights are in the ratio 2 : 3. The ratio of their volumes is
a) 1 : 6
b) 1 : 9
c) 1 : 3
d) 2 : 9

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