By selling 45 lemons for Rs. 40, a man loses 20%. How many should he sell for Rs. 24 to gain 20% in the transaction?

(a) 19
(b) 18
(c) 24
(d) 22

• Ans. (b)18
  
  SP of 45 lemons is Rs.40
  loss = 20%
  So CP of 45 lemon would be 40*100/80= Rs. 50
  To gain 20% he should sell these 45 lemons for =50*20/100=Rs. 60
  Now If he sells for Rs. 60 = 45 lemons
  So for Rs. 24 he would sell = (24/60)*45 = 18 lemons. Hence (Option b)
• 13 years agoHelpfull: Yes(10) No(2)
• The present SP per lemon is 40/45(loosing 20%)
  The CP per lemon would be (40/45)*100/80=4000/3600
  Now he has to sell each lemon @20% profit=(4000/3600)*120/100=1.33
  Now for Rs. 24, No. of lemons to be sold=24/1.33=18(Option b)
• 13 years agoHelpfull: Yes(5) No(1)
• 
  45 lemons price = 40 , which is 80%
  
  man has to get 20% profit i.e 120%
  
  i) 40 ----- 80
  ii) x ----- 120 , we have to cross multiply then we will 120%
  
  40 * 120 / 80 = 60.
  
  for 45 lemons with a 20% gain the price is 60
  
  here we have to find for rs.24,
  
  45/60 *24 = 18
  
  Ans. 18
• 10 years agoHelpfull: Yes(2) No(0)