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08-11-2016
Mathematics

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The ratio of the heights of two similar pyramids is 3:2. The volume of the larger pyramid is 135cm^3. What is the volume of the smaller pyramid?
A)40cm^3 B)90cm^3 C)27cm^3 D)60cm^3

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alsteva alsteva

12-11-2016

Correct answer is B.

[tex] \frac{V_1}{V_2} = \frac{3}{2} \\ \frac{135}{V_2} = \frac{3}{2} \\3V_2=135 \times 2 \\ V_2= \frac{135 \times 2}{3} \\ V_2=90[/tex]

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