Question: "The cost price of a doll is Rs.250 and Marked price is Rs.300. What is the discount to be given to get the 20% profit?"
Solution: Let S.P=x
Profit%= (S.P  C.P)* 100 / C.P
20 = (x250)* 100 / 250
20*250/100 = x250
50 = x250
50+250 = x
Hence S.P = Rs.300 & M.P = Rs.300
Hence discount = M.PS.P = 300300 = 0
Hence zero % discount is to be given to get 20% profit
discount problem
This topic has expert replies
 [email protected]
 Newbie  Next Rank: 10 Posts
 Posts: 4
 Joined: 14 Apr 2012

 Legendary Member
 Posts: 2789
 Joined: 26 Jul 2011
 Location: Chennai, India
 Thanked: 206 times
 Followed by:43 members
 GMAT Score:640
Do you have any query with the problem and the solution.[email protected] wrote:Question: "The cost price of a doll is Rs.250 and Marked price is Rs.300. What is the discount to be given to get the 20% profit?"
Solution: Let S.P=x
Profit%= (S.P  C.P)* 100 / C.P
20 = (x250)* 100 / 250
20*250/100 = x250
50 = x250
50+250 = x
Hence S.P = Rs.300 & M.P = Rs.300
Hence discount = M.PS.P = 300300 = 0
Hence zero % discount is to be given to get 20% profit
Between, please post the question with all available options and hide the actual solution and OA
 Abhishek009
 Master  Next Rank: 500 Posts
 Posts: 359
 Joined: 11 Mar 2009
 Location: Kolkata, India
 Thanked: 50 times
 Followed by:2 members
Proceeding with a further shortcut method to solve the problem mentally within 30 seconds...[email protected] wrote:Question: "The cost price of a doll is Rs.250 and Marked price is Rs.300. What is the discount to be given to get the 20% profit?"
20% => 1/5.
Given  to get the 20% profit <=> Profit = 1/5 th of Cost Price ( Coz profit is always calculated on the Cost Price )
Now , Profit is 50.
Selling price is 300 (250 + 50 = CP + P )
Marked Price is 300
So the shopkeeper doesn't allow any discount and sells the article at the marked price  Hence profit % is 0%...
Abhishek
 [email protected]
 Legendary Member
 Posts: 934
 Joined: 09 Nov 2010
 Location: AAMCHI MUMBAI LOCAL
 Thanked: 63 times
 Followed by:14 members
[email protected] Whatever solution you posted is perfectly correct...
profit or loss % is always calculated on the cost price and not something else.
Also, whenever you post a query at BTG, please do it with options and as if the question is presented in the actual GMAT.
Hope this post was useful to you, thanx.
profit or loss % is always calculated on the cost price and not something else.
Also, whenever you post a query at BTG, please do it with options and as if the question is presented in the actual GMAT.
Hope this post was useful to you, thanx.
IT IS TIME TO BEAT THE GMAT
LEARNING, APPLICATION AND TIMING IS THE FACT OF GMAT AND LIFE AS WELL... KEEP PLAYING!!!
Whenever you feel that my post really helped you to learn something new, please press on the 'THANK' button.
LEARNING, APPLICATION AND TIMING IS THE FACT OF GMAT AND LIFE AS WELL... KEEP PLAYING!!!
Whenever you feel that my post really helped you to learn something new, please press on the 'THANK' button.