vol given 6*5*2 height constant vol decrease by 19% so what is new breadth if l,b decrease in equal percentages.

• vol when 6*5*2=60
  new vol=48.6
  hence equation will be
  (l-lx/100)(b-bx/100)h=48.6
  (6-6x/100)(5-5x/100)2=48.6
  (100-x)^2=8100
  100-x=90
  x=10
  hence decrement in breadth=10%
  new breadth = 5-5*10/100
  =4.5 Answer
• 11 years agoHelpfull: Yes(15) No(1)
• present vol=lbh
  after decrease by 19% vol'=(1-19/100)vol=81/100*vol
  vol'=h*xl*xb where x is the equal fractional decrease in l and b.
  hence, (x^2)lbh=81/100*lbh
  x=9/10=90%
  therefore there is 90%decrease in length and breadth when h is not changed
• 11 years agoHelpfull: Yes(1) No(2)
• new breadth is 4.5 nd decrease of 10% each
• 11 years agoHelpfull: Yes(0) No(1)