does Janet own?

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does Janet own?

by sanju09 » Thu Aug 12, 2010 4:28 am
Janet, Michael, and Jackson each own a number of shares of stock in a company. How many shares does Janet own?

(1) Janet and Michael together own a total of 900 shares.
(2) Janet and Jackson together own a total of 1500 shares



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by Rahul@gurome » Thu Aug 12, 2010 5:01 am
sanju09 wrote:Janet, Michael, and Jackson each own a number of shares of stock in a company. How many shares does Janet own?

(1) Janet and Michael together own a total of 900 shares.
(2) Janet and Jackson together own a total of 1500 shares

[spoiler]Source: freegmattest.net[/spoiler]
Let Janet owns N shares, Michael owns M shares and Jackson owns S shares of stock in the company. We have to find the value of N.

(1) N + M = 900. So, (1) is NOT SUFFICIENT.
(2) N + S = 1500. So, (2) is NOT SUFFICIENT.

Combining (1) and (2), we can't find the value of N as we have 3 variables and 2 equations.

The correct answer is [spoiler](E).[/spoiler]
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