The ratio of radii of two cylinders is 2:3 and the ratio of
their heights is 5:3. If the volume of the bigger cylinder is 27,
then what is volume of the smaller one?

• Ans: 20
  Exp:
  Vol of bigger cyl is pi*3^2*3 =27 then
  Vol of smaller cyl is pi*2^2*5 =20
• 11 years agoHelpfull: Yes(12) No(2)
• let the radii be 2r and 3r
  and let heights be 5h and 3h respectively.
  
  now, vol of A = 20*pi* rh
  
  and vol of B = 27*pi* rh
  
  a/q vol of bigger cylinder is 27.
  
  so vol of B = 27 ;
  solving, we get :
  rh = 1/pi
  
  therefore vol of smaller cylinder (A) is :
  
  20*pi* rh = 20*pi* (1/pi) = 20 units.
• 10 years agoHelpfull: Yes(5) No(0)
• volume of bigger cylinder=22/7(4r^2)(5h)=27
  =(r^2)*h=(27*7)/(4*5*22)=189/440
  volume of bigger cylinder=22/7(9r^2)(3h)
  =22/7[27*(189/440)]
  =36.45
• 11 years agoHelpfull: Yes(2) No(9)