The radii of two cylinders are in the ratio 2 : 3 and their heights are in the ratio 5 : 3. What is the ratio of their volumes?
A. 27 : 20
B. 10 : 9
C. 4 : 9
D. 20 : 27
A. 27 : 20
B. 10 : 9
C. 4 : 9
D. 20 : 27
Best answer
Answer: D. 20 : 27
Answer: (D) 20 : 27
V ∝ r²h. Ratio = (2² × 5) : (3² × 3) = 20 : 27.
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