Subject
Quantitative Aptitude
Topic
Areas & Volumes
The curved surface area of a cylindrical pillar is 264 m2and its volume is 924 m3. Find the ratio of its diameter to its height.
The curved surface area of a cylindrical pillar is 264 m2and its volume is 924 m3. Find the ratio of its diameter to its height.
ক)
3 : 7খ)
7 : 3গ)
6 : 7ঘ)
7 : 6Explanation
একটি নলাকার স্তম্ভের বাঁকা পৃষ্ঠের ক্ষেত্রফল হল 264 m 2 এবং এর আয়তন হল 924 m 3 । এর ব্যাসের সাথে এর উচ্চতার অনুপাত নির্ণয় কর। πr 2 h/2 πrh = 924/264 => (924/264) x 2 = 7 m. And, 2πrh = 264 => h = (264 x 2/22 x ½ x 1/7) = 6m. So, Required ratio = 2r/h = 14/6 = 7:3Related questions
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