Multiple choice

The ratio of volume of a cone to that of a cylinder if radius of cylinder is 1/4 times of that of cone and its height is 8 times of that of the cone, is - एक शंकु के आयतन का एक बेलन के आयतन से अनुपात है, यदि बेलन की त्रिज्या शंकु की त्रिज्या की 1/4 गुना है और इसकी ऊंचाई शंकु की 8 गुना है

  1. 3:2

  2. 2:3

  3. 4:5

  4. 5:4

  5. None of these इनमे से कोई नही

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Volume of cone = (1/3)πr²h and volume of cylinder = πR²H. Given R = (1/4)r and H = 8h, substituting gives cylinder volume = (1/2)πr²h. The ratio cone:cylinder = (1/3):(1/2) = 2:3. The answer is not 3:2 (option A) which reverses the ratio.