36. Length, Breadth and Height of a cuboid is in the ratio 1:327. Volume of the cuboid is 27 m3. If the length is doubled and Breadth & Height are halved, then what is the change in the volume of the cuboid?

• given l:b:h=1:3:27
  so now volume will be lbh=1*3*27=81
  now given l is doubled so l= 2l
  b and h are halved so b=3b/2,h=27h/2
  now new volume 2l*b/2*h/2
  so substitute values then u get lbh=2*(3/2)*(27/2)=40.5
  so the change is 81-40.5=40.5
  so half of the original volume
• 10 years agoHelpfull: Yes(17) No(0)
• volume will become half of original volm.
  
• 10 years agoHelpfull: Yes(10) No(5)
• question wrong :)
• 9 years agoHelpfull: Yes(4) No(0)
• Ans..volume wil be half.
  Reason.........
  l:b:h=1x:3x:27x
  therefore
  volume=81x
  l':b':h'=2*1:3/2:27/2
  new volume=2*81x/4=81x/2=alf of original
• 9 years agoHelpfull: Yes(2) No(0)
• x*3x*7x=27
  x=3/root21
  vol=189/21root21
  new volume will be
  vol=189/42 root 21 that is half of the first vol
  
• 10 years agoHelpfull: Yes(1) No(0)