A person allows a 10% discount for cash payment from the marked price of atoy and still he marks a10% gain.What is tke cost price of the toy which is is marked Rs.770?

• Ans=630 Rs.
  If the cost price=100,then price at 10% gain=110
  As 10% gain is made after 10% discount,the market price=100*110/90=1100/9
  Now when selling price=1100/9, cost price=100
  So when selling price=770, cost price=770*100/(1100/9)=630 Rs.
• 11 years agoHelpfull: Yes(1) No(0)
• Previous Comment has Formula applied which is : r is Discount
  
  Selling Price=[(100-r)*Marked Price]/100
  
  therefore,
  Marked Price=(SP*100)/(100-r)
  
  =(110*100) / (100-10)
  =1100/9
• 7 years agoHelpfull: Yes(0) No(0)
• discount=10%
  MP=10% gain
  110%=770
  90%=770*90/110=630
• 7 years agoHelpfull: Yes(0) No(0)