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.
66 2
3
100
105 1
3
120
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 3 of 31.

DEEKSHITHA BARETTO said:   3 years ago
The formula for gain is CP-SP right?
(4)

Sukumar Natarajan said:   3 years ago
Let CP=100 and SP=y
Profit = y-100.

If SP doubles, profit triples.
3(100-y) = 100-2y,
300 - 3 y = 100-2y,
y= 200.

SP is 200. CP was already taken as 100. So, profit is 100%.
(6)

SHIVAM said:   3 years ago
@Redhotpoker.

yes, you are right S.P is 2x but.

Gain% = SP-CP/CP * 100 ( SP = 2x and CP = x).
= 2x-x/x * 100,
= 100%.
(5)

Redhotpoker said:   3 years ago
In the final equation why selling price is x. Why not 2x? Please explain me.
(1)

Qaaa said:   4 years ago
If,
C.P=100.
S.p = 200,
Profit = 100.

If s.p doubles;
C. P=100,
S.p=400,
Profit=300.

Hence, profit % =100/100 * 100 = 100.
(5)

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%.

Pavani said:   4 years ago
I think the answer is wrong.

2Sp = 2profit.
2sp = 2 (sp-cp),
3cp = 2sp,
Profit = 1.
Profit% = 50.

Pavani said:   4 years ago
I think the answer is wrong.

2Sp = 2profit.
2sp = 2 (sp-cp),
3cp = 2sp,
Profit = 1.
Profit% = 50.

Neeraj said:   4 years ago
I have a doubt, is the question asking to calculate profit before doubling the SP or after?

Let us assume SP = Rs 6, CP = Rs 3, Profit = Rs 3.
As per question new SP = Rs 12, CP will remain same Rs 3 , Profit = Rs 9 ( triple of previous).

in 1st case P% = P/CPx100 = 3/3 x100 = 100%.
in 2nd case P% = 9/3 x100 = 300%.

Please confirm what is specified by the question? Profit in 1st case or 2nd case. Please explain me.
(4)

Neeraj said:   4 years ago
I have a doubt, is the question asking to calculate profit before doubling the SP or after?

Let us assume SP = Rs 6, CP = Rs 3, Profit = Rs 3.
As per question new SP = Rs 12, CP will remain same Rs 3 , Profit = Rs 9 ( triple of previous).

in 1st case P% = P/CPx100 = 3/3 x100 = 100%.
in 2nd case P% = 9/3 x100 = 300%.

Please confirm what is specified by the question? Profit in 1st case or 2nd case. Please explain me.
(1)


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