My Friend bought a used pressure cooker for Rs.70. She somehow did not find it useful and so when a friend of hers offered her Rs.80 she sold it to her. However, she felt bad after selling it and decided to buy it back from her friend by offering her Rs.90. After having bought it once again she felt that she did not really need the cooker. So she sold it at the auction for Rs.100.

How much profit/loss did she make?

• @ Vignesh,
  
  Now I can understand why there are so many problems in the questions posted by you.
  
  Why can't you take both deals separately?
  
  I have explained that answer in that way for simplicity.
  
  If u want to solve in that way, then
  She made loss of Rs 10 when she bought back @ Rs 90.
  Finally she sold the cooker for Rs 100 which she has bought for Rs 70.
  
  so she made profit of Rs 100-70= Rs 30.
  
  Net profit = Rs 30-10= Rs 20
• 12 years agoHelpfull: Yes(2) No(0)
• Profit in first deal = Rs 80-70= Rs 10.
  
  Profit in second deal = 100-90 = 10
  
  total profit = 10+10 = Rs 20
• 12 years agoHelpfull: Yes(1) No(1)
• @ Pargat,
  
  Did she really made profit??
  
  Little doubt on that!
  
  Think in this way,
  
  At first sell, she makes Rs.10 profit but again when she purchased with Rs.90 she needs to add more Rs.10 to it to buy. So till here Rs. 10 loss ,
  
  Then she sells at Rs.100 with Rs.10 profit and with this Rs.10. But with this profit of Rs.10, she is able to clear loss from his previous purchase.
  
  So no loss , no profit only know??
  
  Anybody thought, If my suggestion is wrong, please correct me with proper explanation.
• 12 years agoHelpfull: Yes(1) No(3)
• Well explained, Mr. Pargat.
  
  Rs 20 profit is correct.
  
  Most of the puzzles of Vignesh are copied from other sites.
  
  Whenever he tried to modify the puzzles, he made mistakes and gave illogical puzzles.
• 12 years agoHelpfull: Yes(1) No(2)
• @ Atwal,
  
  Which puzzle i submit illogically??? All have some logic only. ok.
  
  And it is difficult for me to submit my own puzzles all the time. Because i'm not a maths legend like you??
  
  I post such puzzles here which getting(Copying as you said) from other sites. Because, i feel in this site only i get solution with good and clear explanation. So only.
  
  But don't tell that most of my puzzles which i post here is copied from other sites. Ok! Very few only. Because in other sites, i don't get proper solution for such questions. Thats why i posted here and also i mention GENERAL in ASKED IN tab not SELF PUZZLE in ASKED IN tab. Ok.
  
  Nobody will post his/her own puzzles every time. Ok.
  
• 12 years agoHelpfull: Yes(1) No(3)
• @ Vignesh,
  
  Hope the solution is clear to you now.
  
  If there is any doubt, please tell me.
  If there is any other answer, please recheck it.
• 12 years agoHelpfull: Yes(1) No(1)
• Thanks Mr.Pargat. Its clear now.
• 12 years agoHelpfull: Yes(0) No(0)