A) \[25:7\]
B) \[25:49\]
C) \[5:49\]
D) \[5:7\]
Correct Answer: D
Solution :
(d): Let the radius of the two cones be = ?x? cm Let slant height of 1st cone = 5y And, Slant height of 2nd cone = 7y Then, the ratio of curved surface area \[=\frac{\pi x.5y}{\pi x.7y}=5:7\]You need to login to perform this action.
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