Question 20

The profit on the sale of a product is 25%.What will be the loss per cent, if the values of cost price and selling price are interchanged?

Solution

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let CP=100.   PROFIT=25%  SO   SP=125.

now interchange CP and SP.  

CP=125       SP =100 

 LOSS=25.

LOSS% = 25/125*100 = 20%  

SHORTCUT METHOD.

25%=1/4  so   CP= 4     SP= 5

  INTERCHANGE

   CP=5      SP=4   so   loss =1/5=20%

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