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%
please explain clearly
(Wed, Dec 22, 2010 12:25:12 AM)
Profit = s.p - c.p
Profit = 2x - x = x
Profit % = x*100/x = 100%
(Tue, Jan 18, 2011 05:52:18 AM)
= S.P - C.P = PROFIT/100%
= 2X- 3X =1X/100%
= X = 1/100
(Sat, Jan 22, 2011 10:51:05 PM)
Let s.p. = y and c.p. = x
now current profit is (y-x)
and the profit when the s.p. is doubled is (2y-x)
now according to the equation
(2y-x)/3 = (y-x) bcaz new profit is thrice a current profit
solving equation we get y=2x
when s.p. is doubled as c.p.
so profit = (y-x)/x * 100 = (2x-x)/x * 100 = 100%
(Mon, Feb 7, 2011 08:36:47 AM)
If we assume current SP to be Rs.100/- and then profit as x. Then,
Therefore, x=100. I guess this is an easier approach.
(Tue, Feb 8, 2011 07:53:37 AM)
First of all, in the problem they had given that if selling price doubles, profit will be tribled.
Actually we have the formulae that
profit = selling price - cost price
Let the selling price be y and cost price be x
From formulae above profit= s.p.-c.p.
From the data given, if selling price doubles, profit will be tribled. so that
From(1), we can write
profit=y-x, here from the data given if y doubles profit will be tribled. so we can write in place of profit we can write y-x
3(y-x) = 2y-x
profit from (1)
Then we have to calcute profit percentage, so we have formulae for profit percentage
Profit%= (profit/cost price)*100
Help. Please give me an another way to solve the problem.
Suraj Sahoo said:
(Sun, Mar 27, 2011 02:39:34 PM)
LET C.P= 10
SO, PROFIT= (20-10)I.E (SP-CP)
ACC TO THE QUES,
IF S.P DOUBLES I.E 2(20) THEN
PROFIT TRIPLES I.E 3(20-10).
SO, PROFIT PERCNT= (PROFIT/CP)*100
(Fri, May 13, 2011 01:16:51 AM)
Profit = s.p - c.p ---(1)
3(profit)=2s.p - c.p ---(2)
solving equ 1 nd 2... we get
s.p = 2(profit) ---- (3)
substitute equ (3) in equ (1)... we get
c.p = profit ---- (4)
using (3) nd (4) if c.p=1 then s.p=2 and profit=1
hence, profit% = (profit/c.p)*100 = 100%
(Fri, Jun 17, 2011 12:09:01 PM)
@Balaji well done.
(Fri, Jun 17, 2011 04:44:39 PM)
Cost price x , selling price y, profit (y-x).
If selling price is doubled =2y , then new profit will be (2y-x)
which 3 times the original profit i.e. (y-x)
there fore new profit (2y-x)= 3x old profit (x-y)
That is (2y-x)=3(x-y).
(Wed, Jul 6, 2011 02:26:48 AM)
let the c.p be 'x' and s.p be 'y'.
condntn is if s.p is doubled then only profit will be tripled.
(Sat, Jul 9, 2011 04:03:31 PM)
I am explaining the question in accordance with CP=x and SP=y.
The real confusion in this question is that in the statement they have said "selling price is doubled", which means the equation should be 2y = 3(y-x).
But this is wrong, because on left side we are taking only NEW SP but the right side the equation is in terms of Profit.
Remember they have given the relation if SP and Profit in proportionality and NOT EQUAL.
But, we have to make an equation in terms of profit on both sides. So, to get the new Profit, the SP is doubled and the original CP is subtracted from the same i.e. 2y and then subtract the CP from it which gives the equation as : (2y-x) .
I hope the rest is clear to all .. the same is very well explained by @atul
(Sun, Jul 10, 2011 11:50:15 AM)
Can you explain me if selling price is doubled then how profit is thrice the cost price.
As we all know that
selling price=cost price+ profit. I am little bit confused.
(Sun, Jul 17, 2011 02:15:26 AM)
Guneet thanks I got it clearly !
(Fri, Aug 5, 2011 10:10:30 AM)
How can you write profit=3(y-x)=2y-x ? Please can any one tell me.
(Fri, Sep 2, 2011 01:41:46 PM)
Refer balaji's explaination..very clear. No body can explain more than him.
Well done balaji!
(Tue, Sep 6, 2011 04:51:15 PM)
Ya..balaji's explanation is clear Profit= y-x___________(1)
From the data given, if selling price doubles, profit will be tribled. So that
From(1), we can write
Profit = y-x, here from the data given if y doubles profit will be tribled. so we can write in place of profit we can write y-x
Shetkar Venkat said:
(Mon, Jan 2, 2012 01:43:09 PM)
@Guneet your right dude good explanation.
Amit Hemrajani said:
(Mon, Jan 16, 2012 02:26:07 PM)
then the s.p.=200rs(double price according to the question)
profit=300rs (triple profit of c.p.)
now we put the value in formula..
gain =100% it's very easy, i think now u have no doubt regarding this.....have a nice day.......
Pinaki Chatterjee said:
(Mon, Feb 20, 2012 12:09:59 PM)
Let cost price is = C
AND selling price = S
SO profit is (S-C)
IF SELLING PRICE IS 2*S THEN PROFIT IS (2S - C)
PROFIT=2C-C=C , % OF PROFIT =C/C X 100= 100 %
(Sat, Mar 24, 2012 06:31:55 PM)
If profit is g,c.p is x,s.p. is y
If s.p is double(2*y) and profit triples(3*g)
solve above two equation
we get x=2g and y=g
I think it's very simple.
(Thu, Apr 19, 2012 09:59:52 AM)
We take 2Rs as CP
Now we want a profit on sp so we take 2. 50Rs as SP
Now profit on that is 25%
Now according to question SP is double and will be profit Triple.
So now SP is 4 and profit will 25*3 75.
So 75+25=100% profit.
(Sun, May 6, 2012 10:52:52 PM)
As u all know profit= selling_price - cost_price-----eqn1
Now from give data i found new eqn---2:
3*profit=2*selling_price - cost_price----eqn2
So from first n second i found cost_price=profit
As u know %profit= profit*100/cost_price----eqn3
So put the value of cost_price in eqn--3 it means that %profit=100
Hope it is easy to understand.
(Sun, Aug 19, 2012 11:57:27 AM)
let C.P=2, S.P=4(since it is double then C.P), and profit=8(since it is tripple)
[NOTE: profit is based on C.P]
Ritesh Kumar said:
(Sat, Sep 8, 2012 04:23:37 PM)
(Sat, Sep 8, 2012 10:01:27 PM)
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.
(2y-x) =3 (y-x).
This is how you get this equation.
(Thu, Nov 29, 2012 02:49:38 AM)
If new profit is 2y-x, how come 2y-x(profit)=3(y-x), which is 3 times profit. But how come PROFIT=PROFIT? It should be double the SP, triples profit. How come 2y-x=3(y-x) ? it will be 2y=3(y-x)? please help. I am not getting the logic.
(Sun, Jan 13, 2013 07:37:02 PM)
Let the C.P. = X
then S.P. = 2X
So profit = 2X-X = X
And profit % = X/X*100
There is extra line of "profit triples", but it is of no use. :D
(Wed, Feb 13, 2013 01:43:44 AM)
Let say C.P = X,
Then, S.P = Y, (Consider Y value is double the X, so can write as Y=2X).
As per the question profit = 3X,(you can just use this value for validation).
So the profit = S.P - C.P = Y-X.
Profit percentage = Y-X / X * 100.
= 2X-X / X * 100 = 100% .
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%
(Tue, Oct 21, 2014 08:40:22 AM)
Let cost price = Rs 1.
Selling price doubled i.e = Rs 2.
Profit triples i.e = Rs 3.
Gain = SP-CP.
= rs 1/-.
Profit% = gain*100/CP.
= 1*100/1 = 100.
*You take any number it will be true. !
(Mon, Nov 3, 2014 01:06:29 AM)
Please any one explain me in detail each and every step.
(Sun, Dec 21, 2014 06:56:54 PM)
What is the use of saying "Profit triples", it makes question very confusing. If S.P doubles then how can be profit triples?
(Sat, Jan 10, 2015 10:44:30 AM)
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%.
(Fri, Jan 30, 2015 04:19:23 PM)
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?
(Tue, Feb 10, 2015 04:24:46 PM)
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%.
(Thu, Feb 12, 2015 02:33:50 AM)
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%.
(Tue, Feb 24, 2015 02:40:39 PM)
CP = x, SP = 2x.
Profit = SP-CP = 2x-x = x.
%profit = (profit/CP)*100.
Kehkashaa Dubey said:
(Sun, Mar 15, 2015 12:23:34 AM)
I am confused. How would I do it without using x and y?
Could somebody provide me with a logic? When I did it logically it came our to be 200%.