Mathematics
NULL
Medium
Question
The volumes of two cones are in the ratio 1 : 10 and their radii are in the ratio 1 : 2. What is the ratio of their heights?
A
2 : 5
✓ Official correct answer
B
1 : 5
C
1 : 2
D
5 : 2
Community credibility
Registered members can vote for the answer they believe is correct today and explain why. If the facts change after an election or news event, suggest a new option so others can vote it up.
A
2 : 5
No member explanations yet for this option.
B
1 : 5
No member explanations yet for this option.
C
1 : 2
No member explanations yet for this option.
D
5 : 2
No member explanations yet for this option.
Explanation
h ∝ V/r² ⇒ height ratio = (1/1) : (10/4) = 2 : 5.