The ratio of the volumes of two cylinder is x : y and the ratio of their diameters is a : b. What is the ratio of their heights ?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 ie xb² : ya².
V1 / V2 = x/ y
(r1/r2)² × (h1/h2) = x/y
(a²/b²) × (h1/h2) = x/y
h1/h2 = xb2/ya²