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Bob, Mia, and Lou each own a number of shares of stock in a company.

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Math Expert
Joined: 02 Sep 2009
Posts: 49858
Bob, Mia, and Lou each own a number of shares of stock in a company.  [#permalink]

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19 Nov 2017, 09:06
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Difficulty:

25% (medium)

Question Stats:

93% (00:55) correct 7% (00:00) wrong based on 45 sessions

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Bob, Mia, and Lou each own a number of shares of stock in a company. How many shares does Lou own?

(1) Bob and Mia together own a total of 800 shares.

(2) Bob and Lou together own a total of 500 shares.

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Concentration: Entrepreneurship, General Management
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WE: Engineering (Energy and Utilities)
Re: Bob, Mia, and Lou each own a number of shares of stock in a company.  [#permalink]

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19 Nov 2017, 09:23
(1) Bob and Mia together own a total of 800 shares.- this doesn't give any sufficient information. insufficient.

(2) Bob and Lou together own a total of 500 shares.-this doesn't give any sufficient information. insufficient.

Even after combining S1 & S2 , we cant say how many shares Lou has...
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Joined: 19 Oct 2013
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Re: Bob, Mia, and Lou each own a number of shares of stock in a company.  [#permalink]

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20 Nov 2017, 02:03
From statement 1) we know that B + M = 800 However this is insufficient we know nothing about Lou's shares.

From statement 2) we know that B + L = 500 again not enough information.

Combining both and substitute one equation in the other.

Let B = 800 - M >> 800 - M + L = 500 >> L = M - 300 , still insufficient since I have 2 variables in the equation.

Re: Bob, Mia, and Lou each own a number of shares of stock in a company. &nbs [#permalink] 20 Nov 2017, 02:03
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