A girl bought 20 banana at Rs.36 for 5 banana and sold all of them at four banana for Rs.55. How much did the girl earn or lose in this transaction?

• CP = 5 banana cost Rs. 36 so 20 banana 36*4=144
  SP = 4 banana cost Rs. 55 so 20 banana 55*5=275
  
  so gain= sp-cp = 275-144 = Rs. 131 (ans)
• 11 years agoHelpfull: Yes(0) No(0)
• gain=rs.131
  bought => 5 banana=rs.36
  20 banana=rs.144
  sold => 4 banana=rs.55
  20 banana=rs275
  so the gain,275-144=131.
  
• 11 years agoHelpfull: Yes(0) No(0)