If the price of kerosene is increased by 9 percentage, find how much consumption to be reduced by the house holder to keep his expenditure not increased ?

• 8.25%
  
  If original price=x and consumption=y, total consumption=xy
  As the price is increased to (109/100)*x=1.09x, to keep the expenditure same i.e. xy ,value of y must be reduced to 1/1.09=0.917
  So %reduction in y=100(1-0.917)=8.25
• 9 years agoHelpfull: Yes(2) No(0)