Aptitude - Profit and Loss - Discussion
Discussion Forum : Profit and Loss - General Questions (Q.No. 3)
3.
If selling price is doubled, the profit triples. Find the profit percent.
Answer: Option
Explanation:
Let C.P. be Rs. x and S.P. be Rs. y.
Then, 3(y - x) = (2y - x) 
y = 2x.
Profit = Rs. (y - x) = Rs. (2x - x) = Rs. x.
 Profit % = |
 |
x | x 100 |  % = 100% |
| x |
Video Explanation: https://youtu.be/dPzF10mGsWE
Discussion:
303 comments Page 1 of 31.
Ezhilarasi.M said:
2 decades ago
I don't understand explanation. So, please tell me detailed explanation.
Sangeetha K. said:
1 decade ago
Hai Ezhil,
profit = S.P -C.P
S.P = 2Y
C.P = X
PROFIT = 3(Y-X)= (2Y-X)
= 3Y-3X-2Y+X
= 1Y-2X
(i.e)Y=2X : Profit = (Y-X)(i.e) =(2x-x)=Rs.x
Profit% = C.P/profitX100= X/X*100=100%
profit = S.P -C.P
S.P = 2Y
C.P = X
PROFIT = 3(Y-X)= (2Y-X)
= 3Y-3X-2Y+X
= 1Y-2X
(i.e)Y=2X : Profit = (Y-X)(i.e) =(2x-x)=Rs.x
Profit% = C.P/profitX100= X/X*100=100%
Swathi said:
1 decade ago
Why did you equaled 3 (y-x) = (2y-x). Please explain it detaily.
Giriganesh said:
1 decade ago
In that question.,
Profit is three time increase
3X profit =3 X( s.p - c.p )
=3 X (Y -X)
=3(Y-X)=(S.P - C.P) [.: Because Profit = S.P - C.P]
=(2 x Y )-X [.: S.P is increase two times]
=2Y-X
.:3(y-x)=(2y-x).
Profit is three time increase
3X profit =3 X( s.p - c.p )
=3 X (Y -X)
=3(Y-X)=(S.P - C.P) [.: Because Profit = S.P - C.P]
=(2 x Y )-X [.: S.P is increase two times]
=2Y-X
.:3(y-x)=(2y-x).
Chetan said:
1 decade ago
I think there is something wrong in answers or may be I don't understand but,.
When you are asked to calculate profit percentage you are doing "(y-x) /x *100".
Is it wright?.
I think we have to do "(2y-x) /x*100".
When you are asked to calculate profit percentage you are doing "(y-x) /x *100".
Is it wright?.
I think we have to do "(2y-x) /x*100".
Prakash said:
1 decade ago
@Swathi
Both are profits s.p is y and c.p is x then profit is y-x. And if profit tripls then 3(Y-X) is profit and new selling price is 2y then profit is 2y-x.
Both are profits s.p is y and c.p is x then profit is y-x. And if profit tripls then 3(Y-X) is profit and new selling price is 2y then profit is 2y-x.
Sridhar said:
1 decade ago
Chetan answer is right, check answer of Sangeetha
Sandhya said:
1 decade ago
Please give me clear answer, I don't understand how (2y-x)come ?
Saleem said:
1 decade ago
Assume s.p=20, profit=10
Then, s.p double=20+20=40
Profit triple=10+10=20+20=40
So 100%.
Then, s.p double=20+20=40
Profit triple=10+10=20+20=40
So 100%.
Rajeshkavi said:
1 decade ago
Hi, I dont able to understand this question 1.If selling price is doubled, the profit triples. Find the profit percent.but you gave solution like this
Let C.P. be Rs. x and S.P. be Rs. y.
Then, 3(y - x) = (2y - x) y = 2x.
Profit = Rs. (y - x) = Rs. (2x - x) = Rs. x.
Profit % = x x 100 % = 100%
x
please explain clearly
Let C.P. be Rs. x and S.P. be Rs. y.
Then, 3(y - x) = (2y - x) y = 2x.
Profit = Rs. (y - x) = Rs. (2x - x) = Rs. x.
Profit % = x x 100 % = 100%
x
please explain clearly
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