mrs johns sold two houses for rs80,000 each. one house was sold 20% loss and other at a 20% gain.what is the gain minus the loss?

• in this case seller always incurs a loss which is given by
  loss%=(common loss or gain%/10)^2
  then loss = (20/10)^2=4%
  
• 11 years agoHelpfull: Yes(5) No(0)
• in such type of question always occur loss
  it having direct formulae
  loss=((loss%/gain%)10)^2
  loss%=(20*20)/(10*10);
  loss%=4%
• 11 years agoHelpfull: Yes(3) No(0)
• trick if a person sold identical item one at x% gain nd other at x% loss result always loss of x%. loss %=(x/10)^2
  so from question loss%=(20/10)^2=4% ans.
• 11 years agoHelpfull: Yes(3) No(0)
• (x/10)^2*100;x=common loss or gain %.
  Ans =4%
• 10 years agoHelpfull: Yes(0) No(0)