A trader cheats both his supplier and customer by using faulty weights.when he buys from the supplier,he takes 10% more than the indicated weight.when he sells to his customer,he gives 10% less than the indicated weight.if he sells at cost price(that is charges the c.p. of the indicated weight),what is the profit per.?pl. provide sol.

1) 20%
2) 10%
3) 11 1/9%
4) 22 2/9%

• supplier customer
  100g 100g
  110g x+10/100x=100 where x is effective grams
  x=100/1.1
  
  effective Cp=100/110 rs/g effective Sp=100/100*1.1
  
  
  effective sp/effectivecp=1.2
  
  profit=21%
  
• 8 years agoHelpfull: Yes(0) No(0)
• 20/90*100 =22 2/9 %
• 7 years agoHelpfull: Yes(0) No(0)