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:
304 comments Page 22 of 31.
DDv said:
1 decade ago
Ok look the most basic and fastest way to think.
Take C.P as 100 and sell price as 100+x; where profit is x;
Now 3x = 2*(100+x)-100(C.P);
3x = 100+x;
x = 100;
So on 100 C.P profit 100; so profit is 100%.
Take C.P as 100 and sell price as 100+x; where profit is x;
Now 3x = 2*(100+x)-100(C.P);
3x = 100+x;
x = 100;
So on 100 C.P profit 100; so profit is 100%.
Ravi said:
1 decade ago
C.P = x.
S.P = 2x.
P = 3x.
We know Profit = S.P-C.P.
So Here Profit = 2x-x = x.
We also know Profit% = P/C.Px100.
X/Xx100 = 100%.
S.P = 2x.
P = 3x.
We know Profit = S.P-C.P.
So Here Profit = 2x-x = x.
We also know Profit% = P/C.Px100.
X/Xx100 = 100%.
Shyam said:
1 decade ago
Say CP = 10.
SP = 20 profit will be 10 only.
Then after changing SP twice. It will be 40 right?
So SP*2 = 40.
Now profit = 40-10 = 30. Which is thrice as previous profit?
Then profit % is more 300% is it?
So, I think question need to more descriptive right?
SP = 20 profit will be 10 only.
Then after changing SP twice. It will be 40 right?
So SP*2 = 40.
Now profit = 40-10 = 30. Which is thrice as previous profit?
Then profit % is more 300% is it?
So, I think question need to more descriptive right?
Shiti said:
1 decade ago
Take an example we will take LCM of 2 and 3 as it is double and triple so 6 would be selling price profit is tripled so initial profit is 2 and as selling price is doubled initial SP is 3. So CP is 1 I think the profit percentage i.e P/cp x 100 = 2/1 x 100 = 200%.
Shubham said:
1 decade ago
What is the use of saying "Profit triples", it makes question very confusing. If S.P doubles then how can be profit triples?
Rajan said:
1 decade ago
Please any one explain me in detail each and every step.
Sunil said:
1 decade ago
Let cost price = Rs 1.
Selling price doubled i.e = Rs 2.
Profit triples i.e = Rs 3.
Gain = SP-CP.
= 2-1.
= rs 1/-.
Profit% = gain*100/CP.
= 1*100/1 = 100.
*You take any number it will be true. !
Selling price doubled i.e = Rs 2.
Profit triples i.e = Rs 3.
Gain = SP-CP.
= 2-1.
= rs 1/-.
Profit% = gain*100/CP.
= 1*100/1 = 100.
*You take any number it will be true. !
Gaurav said:
1 decade ago
@Pooja but just for clarification.
If you calculate the profit it will not be tripled !
They should add one more option as 300%
If you buy a pencil for 5 rs sell it for 10rs you have a profit of 5rs that's 100% profit !
CP = 5rs.
SP(doubled) = 20rs.
Profit = 20-5 = 15rs.
Profit is thrice the profit it was before 5x3.
Then profit becomes 300%
If you calculate the profit it will not be tripled !
They should add one more option as 300%
If you buy a pencil for 5 rs sell it for 10rs you have a profit of 5rs that's 100% profit !
CP = 5rs.
SP(doubled) = 20rs.
Profit = 20-5 = 15rs.
Profit is thrice the profit it was before 5x3.
Then profit becomes 300%
Pooja said:
1 decade ago
Let CP = x;
SP = 2x;
Profit = SP-CP;
Profit = 2x-x;
Profit = x;
Gain% = (gain*100/cp);
Gain% = (x*100/X);
Gain% = 100;
SP = 2x;
Profit = SP-CP;
Profit = 2x-x;
Profit = x;
Gain% = (gain*100/cp);
Gain% = (x*100/X);
Gain% = 100;
Karu said:
1 decade ago
SP = x;
CP = y;
p = (x-y)*100/y;
SP' = 2x;
P' = 3*P;
=> (2x-y)*100/y = 3*(x-y)*100/y;
=> x = 2*y;
=> SP = 2*CP;
=> P = 100%;
=> Profit Percent = 100%.
CP = y;
p = (x-y)*100/y;
SP' = 2x;
P' = 3*P;
=> (2x-y)*100/y = 3*(x-y)*100/y;
=> x = 2*y;
=> SP = 2*CP;
=> P = 100%;
=> Profit Percent = 100%.
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