The cost price of a cow and a horse is 3 lakhs. The cow is sold at 20% profit and horse at 10% loss.
Overall gain is Rs.4200. What is the cost price of the cow?

• ans is 114000
  let costs of cow and horse are x,y so x+y=300000------(1)
  (x*120/100)+(y*90/100)=304200
  120x+90y=30420000------(2).
  solve equations (1) and (2)
  x=114000
  
• 9 years agoHelpfull: Yes(31) No(0)
• Ans.114000
  (42000/3lakhs)*100=1.4
  using allegation
  20 -10
  1.4
  11.4 18.6
  11.4/30 * 3lakhs=114000
  
• 9 years agoHelpfull: Yes(4) No(0)
• cow price is
  114000
  
• 9 years agoHelpfull: Yes(3) No(1)
• let the cost prize of cow and horse be x and y.
  therefore x + y = 400000 eqn(1)
  20% profit for cow so 120/100=1.2x and 10% loss for horse so 90/100=0.9y
  therefore 1.2x + 0.9y = 404200 eqn(2)
  solve (1) and (2)
  x=114000
• 9 years agoHelpfull: Yes(2) No(0)
• say cost price of cow=x, cost price of horse =300000-x
  3 lakhs-(120x/100+90(3 lakhs-x)/100)=4200
  then x=86000(ans)
• 9 years agoHelpfull: Yes(1) No(10)
• x+y=300000..............................(i)
  (x+0.2x+0.9+y-0.1y)-300000=4200..........(ii)
  solve this and you will get x=114000 (cows price)
• 9 years agoHelpfull: Yes(1) No(0)
• c+h=300000
  1.2c+0.9h=304200
  by solving them we get
  cost price of cow=114000
• 9 years agoHelpfull: Yes(1) No(0)
• cost price of cow is 114000
• 9 years agoHelpfull: Yes(0) No(0)
• c+h=300000 ------>1
  1.2c+0.9h=304200 ------->2
  
  solving 1 & 2 we get c=114000
  
• 9 years agoHelpfull: Yes(0) No(1)