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:
306 comments Page 24 of 31.
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%.
Vikram said:
1 decade ago
When selling price doubled even cost price is also doubled than how this comes SP = 2y-x ?
Rohit gautam said:
7 years ago
The price of a commodity becomes tripled in 20 years. Find the average rate of increase.
Aastha said:
4 years ago
Let c.p=x.
s.p=2x.
Profit = s.p - c.p.
Profit = 2x - x = x.
Profit % = x*100/x = 100%.
s.p=2x.
Profit = s.p - c.p.
Profit = 2x - x = x.
Profit % = x*100/x = 100%.
Satish said:
1 decade ago
profit per= ((s.p-c.p)/c.p)*100
c.p=x
s.p=2x
profit per = ((2x-x)/x)*100
=100
simple
c.p=x
s.p=2x
profit per = ((2x-x)/x)*100
=100
simple
Aakash kathunia said:
1 decade ago
I am also not able to understand how you substract x from 2y.. please explain... plz
Harshitha said:
8 years ago
In question they gave sp is doubled. So we have to take only 2y, why you took 2y-x?
Raj said:
1 decade ago
Let c.p=x
s.p=2x
Profit = s.p - c.p
Profit = 2x - x = x
Profit % = x*100/x = 100%
s.p=2x
Profit = s.p - c.p
Profit = 2x - x = x
Profit % = x*100/x = 100%
(1)
Mangai said:
9 years ago
@Tushar Vaibhav.
You explained clearly and It is easy when to compare to others.
You explained clearly and It is easy when to compare to others.
Ontela Alekya said:
7 years ago
Let c.p=X,s.p=2X.
The gain=2X-X=X (s.p-c.p).
And gain%=X/X*100 (gain*100)/c.p.
The gain=2X-X=X (s.p-c.p).
And gain%=X/X*100 (gain*100)/c.p.
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