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John sold 100 shares of stock for $96 per share. For half

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John sold 100 shares of stock for $96 per share. For half [#permalink]

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John sold 100 shares of stock for $96 per share. For half his shares, this represented a 20% profit; for the other half, this represented a 20% loss. What was the net gain or net loss on this sale of stock?

A. No loss or gain
B. Gain of $400
C. Loss of $400
D. Gain of $800
E. Loss of $800
[Reveal] Spoiler: OA
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GMATFIGHTER wrote:
John sold 100 shares of stock for $96 per share. For half his shares, this represented a 20% profit; for the other half, this represented a 20% loss. What was the net gain or net loss on this sale of stock?

A. No loss or gain
B. Gain of $400
C. Loss of $400
D. Gain of $800
E. Loss of $800


Strange wording. Anyway:

Cost of the profitable stock: x=96/1.2=80, so profit from it 96-80=16. Total profit 50*16=800
Cost of the non-profitable stock: y=96/0.8=120, so loss from it 96-120=-24. Total loss 50*(-24)=-1200

Total loss: 800+(-1200)=-400.

Answer: C.
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New post 31 Jan 2010, 14:53
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GMATFIGHTER wrote:
John sold 100 shares of stock for $96 per share. For half his shares, this represented a 20% profit; for the other half, this represented a 20% loss. What was the net gain or net loss on this sale of stock?

a) No loss or gain

b) Gain of $400

c) Loss of $400

d) Gain of $800

e) Loss of $800


Would you guys please show me a short cut to answer this problem? A much faster approach would be appreciated!
Thanks!


50 shares for 20 % loss and 50 share for 20 % profit.

For profit - > 96 = 120 % of x hence x = 80 , total profit = 50 x (96-80) = 50 x 16
For Loss - > 96 = 80 % of y hence y = 120, total loss = 50 x (120-96) = 50 x 24

Net loss = 50 x24 - 50 x 16 = 50 (8) = 400

answer should be c
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Re: What's the fastest way to asnwer this problem? [#permalink]

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New post 31 Jan 2010, 20:16
ayeshan wrote:
answer should be C


ayeshan - you look like a spammer to me who is in a rush to grab gmatclub test .

Bunuel/bb - please check his profile
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Re: What's the fastest way to asnwer this problem? [#permalink]

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New post 31 Jan 2010, 23:48
GMATFIGHTER wrote:
John sold 100 shares of stock for $96 per share. For half his shares, this represented a 20% profit; for the other half, this represented a 20% loss. What was the net gain or net loss on this sale of stock?

a) No loss or gain

b) Gain of $400

c) Loss of $400

d) Gain of $800

e) Loss of $800


Would you guys please show me a short cut to answer this problem? A much faster approach would be appreciated!
Thanks!


Total Selling Price = $9600

For 50 shares it is 20% profit and for other 50 it is 20% Loss.


For 20% profit
6/5*cost = 9600

cost=$80

For 20% Loss
4/5*cost = 9600

cost= $120

Total cost = $80*50 + $120*50 = 10,000

Therefore Loss = 10,000 - 9600 = $400
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New post 28 Feb 2012, 04:27
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20% profit and 20% loss = \(\frac{6}{5}*\frac{4}{5} = \frac{24}{25}\) OR 4% loss

\(\frac{24}{25}x=9600\) .... [where x is the cost]

total loss [4% of cost] = \(9600*\frac{25}{24x}*\frac{4}{100} = 400\)

ans: 400
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New post 14 Dec 2013, 14:14
Bunuel - apologies. But, I am struggling on this question from Veritas Arithmetic guide. See, Profit = S.P - C.P and after taking C.P as x for 1 item, I am not getting it right. Can you please explain?
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New post 16 Dec 2013, 02:33
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New post 22 Dec 2013, 15:29
Sure...

S.P of 1 share = 96
S.P of 50 shares = 50 * 96 = 4800


C.P of 1 share = x
C.P of 50 shares = 50x

Profit = 4800 - 50x --------------------[S.P - C.P] = 20 % profit

20% profit = 4800 - 50x

After this I struggle. can you please help?
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New post 22 Dec 2013, 23:55
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enigma123 wrote:
Sure...

S.P of 1 share = 96
S.P of 50 shares = 50 * 96 = 4800


C.P of 1 share = x
C.P of 50 shares = 50x

Profit = 4800 - 50x --------------------[S.P - C.P] = 20 % profit

20% profit = 4800 - 50x

After this I struggle. can you please help?


First of all, John sold ALL 100 shares of stock for $96 per share, not only 50 of them.

Next, cost (CP) of the profitable stock was 96/1.2 = $80 and the cost of the non-profitable stock was 96/0.8 = $120. Thus the profit was 50*(96-80) = $800 and the loss was 50*(120-96) = $1,200, which give s the overall loss of $400.

Hope it's clear.
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Re: John sold 100 shares of stock for $96 per share. For half [#permalink]

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New post 23 Dec 2013, 02:24
simple percetage question...


96=5/4 of x (its better to write in fraction rather in percentage, I have tried in both way, bt it tuk me longer time with decimals)

x=80.

profit is of 16 dollar per share. so 16*50=800.

4/5 of x=96

x=120 (this is the value on which he purchased 50 stocks)

loss of 24 dollar per share....24*50=1200..... so 1200 loss-800 profit=net loss of 400.
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John sold 100 shares of stock for $96 per share. For half [#permalink]

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One will always have loss in such case;

Direct formula:

Total loss amount = \(\frac{2 X P^2}{(100^2 - P^2)\)

Total loss % = \(\frac{P^2}{100^2}\)

X = common sales price of two different items = in this case 96x50
P = % loss = % gain = in this case 20
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Re: John sold 100 shares of stock for $96 per share. For half [#permalink]

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50 shares for 20 % loss and 50 share for 20 % profit.

For profit - > 96 = 120 % of x hence x = 80 , total profit = 50 x (96-80) = 50 x 16
For Loss - > 96 = 80 % of y hence y = 120, total loss = 50 x (120-96) = 50 x 24

Net loss = 50 x24 - 50 x 16 = 50 (8) = 400
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Re: John sold 100 shares of stock for $96 per share. For half [#permalink]

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New post 13 Dec 2015, 04:08
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Bluefalkon wrote:
50 shares for 20 % loss and 50 share for 20 % profit.

For profit - > 96 = 120 % of x hence x = 80 , total profit = 50 x (96-80) = 50 x 16
For Loss - > 96 = 80 % of y hence y = 120, total loss = 50 x (120-96) = 50 x 24

Net loss = 50 x24 - 50 x 16 = 50 (8) = 400



Good Explanation...Thx
Re: John sold 100 shares of stock for $96 per share. For half   [#permalink] 13 Dec 2015, 04:08
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