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:
306 comments Page 8 of 31.

Anu said:   4 years ago
@Ashwini.

We could assume C. P as 100.
Now by the given condition,
If C. P = 100 than S. P = 2*100 = 200.
So now using profit % formula;
(S. P - C.P)*100/C.P,
S. P - C. P = 200 - 100 = 100 ; and also C.P = 100,
So, profit% = 100 *100/100,
Hence, the profit% = 100.

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%.

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?

Nants said:   7 years ago
Dear sir,

Here,if cp=x, sp=y.

Then according to question profit will be;
Profit =(y-x),
Here, 3(y-x)=2y-x,
Profit triple =3(y-x) it is clear,
But,selling price doubled then it should be;
S.P doubled =2y.

Then how come 2y-x?
I could not get it. Please tell me.

Poonam said:   1 decade ago
Its very simple see.

Assume cp=x, sp=y.

Old profit =y-x.

If sp is now doubled then new profit 2y-x.

Now acc to question when sp is doubled after that what profit we get is 3 times of the old one.

Means.

(2y-x) =3 (y-x).

This is how you get this equation.

Soham Garai said:   4 years ago
Let me clear it;

LET THE CP BE Rs; x.
AND LET THE SP BE Rs y.

So, PROFIT = y - x.

But, HERE AS MENTIONED PROFIT TRIPLES AND SP DOUBLES;
SO,3(y-x) = 2y-x.
3y-3x = 2y-x.
y = 2x(SP).
PROFIT = 2x-x = x.
PROFIT % = x/x * 100=100(HERE X is profit and X is CP).

Pankaj said:   7 years ago
Let S.P - x, C.P-Y.

Given,
2 S.P = 3 P.
2 x = 3( X - Y),
From here find C.P i.e,
Y = X/3.

Now find profit P=X-Y.
=X - X/3. (Bcz, Y=X/3),
= X/3.

Now use P% formula.

P% = P/C.P * 100.
= X/3/X/3 *100,
= 100%.

Rohan said:   4 years ago
Hi;

In this equation, the statement is if s.p. is doubling then profit triples I.e c.p is x and s.p is y. Therefore ३ (y-x)=(२y-x) then in this equation why x is involved in २y-x the only sp is doubled then profit triples, so why x cp is involved?

Giriganesh said:   2 decades 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).

Ketema said:   10 years ago
@Pooja.

Thanks. this simple why other persons going round? If profit is tripled & S.P is doubled then what is the gain percentage?

As @Pooja explain,

G% = 100 (S.P-C.P)/C.P.

W\c is 100 (2x-x)/x.

Since S.P or y = 2x and C.P = x. So G% = 100%.


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