If the length breadth and height of a cube are decreased decreased and increased by 5%, 5%, and 20% respectively. Then what will be the impact on the surface area of a cube?????

• increase by 6.08333 %
  
• 11 years agoHelpfull: Yes(25) No(10)
• increase by 8.03%
• 11 years agoHelpfull: Yes(15) No(2)
• let l=b=h=1;
  total surface area =2(l*b+b*h+l*h)=6
  new l=b=0.95 h=1.2
  total surface area = 6.365
  (6.365-6)/6 *100=6.08%
  so calculating %age it will be decremented by 9%
• 11 years agoHelpfull: Yes(8) No(5)
• ques is wrngggggggggg
  
• 11 years agoHelpfull: Yes(7) No(8)
• let l=b=h=1;
  total surface area =2(l*b+b*h+l*h)=6
  after decreasing and increasing as given
  total surface area =273/50.
  difference=6-(273/50)=27/50.
  so calculating %age it will be decremented by 9%.
• 11 years agoHelpfull: Yes(2) No(9)